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 mondofacto - Online Medical Dictionary
Category: Health and Medicine > Medical Dictionary
Date & country: 26/01/2008, UK
Words: 116197


green sickness
Synonym for chlorosis ... Yellowing or bleaching of plant tissues due to the loss of chlorophyll or failure of chlorophyll synthesis. Symptomatic of many plant diseases, also of deficiencies of light or certain nutrients. ... (18 Nov 1997) ...

green soap
Synonym for medicinal soft soap ... A soap made with vegetable oils, potassium hydroxide, oleic acid, glycerin, and purified water; used as a stimulant in chronic skin diseases. ... Synonym: green soap, soft soap. ... (05 Mar 2000) ...

green soap tincture
A liquid preparation containing potassium soaps and alcohol; frequently advocated in skin cleansing, particularly after exposure to plant toxins such as poison ivy. ... (05 Mar 2000) ...

green sputum
Synonym for sputum aerogenosum ... A green expectoration seen occasionally in jaundice, due to staining of the sputum by bile pigments. ... Synonym: green sputum. ... (05 Mar 2000) ...

green stain
<technique> A deposit, produced by chromogenic bacteria, found on the cervicolabial portions of the teeth, usually in children. ... See: acquired pellicle. ... (05 Mar 2000) ...

green sulfur bacteria
A group of green or brown bacteria of the families chlorobiaceae and chloroflexaceae that occur in aquatic sediments, sulfur springs, and hot springs and that utilise reduced sulfur compounds instead of oxygen. ... (12 Dec 1998) ...

green tobacco sickness
An illness of tobacco harvest workers characterised by headache, dizziness and vomiting. ... (05 Mar 2000) ...

green ton
2,000 pounds of undried biomass material. Moisture content must be specified if green tons are used as a measure of fuel energy. ... (05 Dec 1998) ...

green tooth
Green to brown discoloration of the primary teeth associated with erythroblastosis foetalis and caused by deposition of haemoglobin pigments in the developing teeth. ... (05 Mar 2000) ...

green vision
Synonym for chloropsia ... A condition in which objects appear to be coloured green, as may occur in digitalis intoxication. ... Synonym: green vision. ... Origin: chloro-+ G. Opsis, eyesight ... (05 Mar 2000) ...

Greenfield
L., American surgeon who designed the Greenfield filter. ... See: Greenfield filter. ... (05 Mar 2000) ...

Greenfield filter
A multistrutted spring-styled filter usually placed in the inferior vena cava to prevent venous emboli from reaching the pulmonary circulation from the lower extremity. ... (05 Mar 2000) ...

greenhouse effect
The effect of certain gases in the Earth's atmosphere in trapping heat from the sun. ... (05 Dec 1998) ...

greenhouse gases
Gases that trap the heat of the sun in the Earth's atmosphere, producing the greenhouse effect. The two major greenhouse gases are water vapour and carbon dioxide. Other greenhouse gases include methane, ozone, chlorofluorocarbons, and nitrous oxide. ... (05 Dec 1998) ...

Greenhow, Edward
<person> British physician, 1814-1888. ... See: Greenhow's disease. ... (05 Mar 2000) ...

Greenhow's disease
Synonym for parasitic melanoderma ... Excoriations and melanoderma caused by scratching the bites of the body louse, Pediculus corporis. ... Synonym: Greenhow's disease, vagabond's disease, vagrant's disease. ... Racial melanoderma, the normally dark skin of blacks and certain other races. ... Senile melanoderma, cutaneous pigmentation occurring in the …

greenlet
L. ... <ornithology> One of numerous species of small American singing birds, of the genus Vireo, as the solitary, or blue-headed (Vireo solitarius); the brotherly-love (V. Philadelphicus); the warbling greenlet (V. Gilvus); the yellow-throated greenlet (V. Flavifrons) and others. See Vireo. ... 2. <ornithology> Any species of Cyclorhis, …

Greenough microscope
<instrument, microscopy> One of two kinds of stereomicroscopes with two separate compound microscopes, one for each eye, focused on the same object. The other kind has a common main objective. ... See: binocular microscope. ... (05 Aug 1998) ...

greensand
<geology> A variety of sandstone, usually imperfectly consolidated, consisting largely of glauconite, a silicate of iron and potash of a green colour, mixed with sand and a trace of phosphate of lime. ... Greensand is often called marl, because it is a useful fertiliser. The greensand beds of the American Cretaceous belong mostly to the Upper …

greenstick fracture
The bending of a bone with incomplete fracture involving the convex side of the curve only. ... (05 Mar 2000) ...

greet
1. To address with salutations or expressions of kind wishes; to salute; to hail; to welcome; to accost with friendship; to pay respects or compliments to, either personally or through the intervention of another, or by writing or token. 'My lord, the mayor of London comes to greet you.' (Shak) ... 2. To come upon, or meet, as with something that ma …

greffotome
An obsolete term for an instrument for slicing off bits of epidermis to use in grafting. ... Origin: Fr. Greff, graft, + G. Tome, incision ... (05 Mar 2000) ...

gregaloid
Denoting a loose colony of protozoa formed by the chance union of independent cells, especially among sarcodines with pseudopodial adherence. ... Origin: L. Grex (greg-), a flock ... (05 Mar 2000) ...

Gregarina
A genus of sporozoan protozoa (phylum Apicomplexa, subclass Gregarinia), parasitic in annelids and arthropods, and lacking schizogony and endodyogeny in the life cycle. ... Origin: L. Gregarius, gregarious, fr. Grex (greg-), a flock ... (05 Mar 2000) ...

gregarinae
<zoology> An order of Protozoa, allied to the Rhizopoda, and parasitic in other animals, as in the earthworm, lobster, etc. When adult, they have a small, wormlike body inclosing a nucleus, but without external organs; in one of the young stages, they are amoebiform. ... Synonym: Gregarinida, and Gregarinaria. ... Origin: NL, fr. Gregarina the …

gregarine movement
<biology, microbiology> Peculiar gliding movement shown by gregarines (Protozoa), the mechanism of which is poorly understood. ... (18 Nov 1997) ...

Gregarinia
A sporozoan subclass consisting of a number of parasites of the body cavity and intestinal tract of invertebrates, especially annelids and arthropods; typical genera include Gregarina in insects and Monocystis in earthworms. ... (05 Mar 2000) ...

gregarinosis
A disease due to the presence of gregarines. ... (05 Mar 2000) ...

gregarious
Habitually living or moving in flocks or herds; tending to flock or herd together; not habitually solitary or living alone. 'No birds of prey are gregarious.' (Ray) 2. (of people) enjoying companionship; sociable; not solitary. 3. (of plants) growing in clusters. Grega'riously, Gre-ga'ri-ous-ness. ... Origin: L. Gregarius, fr. Grex, gregis, herd; cf …

Gregor Mendel
Synonym for Mendel, Gregor Johann ... <person> An Austrian monk and botanist. His breeding experiments on garden peas and subsequent formulation of the laws of heredity formed the basis for the field of genetics. ... Lived: 1822-1884. ... (13 Nov 1997) ...

gregorian
Pertaining to, or originated by, some person named Gregory, especially one of the popes of that name. Gregorian calendar, the calendar as reformed by Pope Gregory XIII. In 1582, including the method of adjusting the leap years so as to harmonize the civil year with the solar, and also the regulation of the time of Easter and the movable feasts by m …

Greig, David
<person> Scottish physician, 1864-1936. ... See: Greig's syndrome. ... (05 Mar 2000) ...

Greig's syndrome
<syndrome> Extreme width between the eyes, mental retardation may be associated. ... (27 Sep 1997) ...

grenada
An island of the west indies. Its capital is st. George's. It was discovered in 1498 by columbus who called it concepcion. It was held at different times by the french and the british during the 18th century. The british suppressed a native uprising in 1795. It was an associate state of great britain 1967-74 but became an independent nation within …

grenade
<chemical> A hollow ball or shell of iron filled with powder of other explosive, ignited by means of a fuse, and thrown from the hand among enemies. Hand grenade. A small grenade of iron or glass, usually about two and a half inches in diameter, to be thrown from the hand into the head of a sap, trenches, covered way, or upon besiegers mounti …

grenadier
1. Originaly, a soldier who carried and threw grenades; afterward, one of a company attached to each regiment or battalion, taking post on the right of the line, and wearing a peculiar uniform. In modern times, a member of a special regiment or corps; as, a grenadier of the guard of Napoleon I. One of the regiment of Grenadier Guards of the British …

grenz ray
Very soft X-ray's, closely allied to the ultraviolet ray's in their wavelength (i.e., long) and in their biologic action upon tissues; they are produced by a specially built vacuum tube with a hot cathode operating from a transformer delivering not more than 8 kw. ... Origin: Ger. Grenze, borderline, boundary ... (05 Mar 2000) ...

grenz zone
In histopathology, a narrow layer beneath the epidermis that is not infiltrated or involved in the same way as are the lower layers of the dermis. ... Origin: Ger. Grenze, borderline, boundary ... (05 Mar 2000) ...

gression
Displacement of a tooth backward. ... Origin: L. Grador, pp. Gressus, to walk, fr. Gradus, a step ... (05 Mar 2000) ...

Greville bath
An obsolete treatment with nonluminous electric hot air given at a very high temperature. ... (05 Mar 2000) ...

grex
<biology> The multicellular aggregate formed by cellular slime moulds (Acrasidae): the slug like grex migrates, showing positive phototaxis and negative gravitaxis, until culmination (the formation of a fruiting body) takes place. ... Coordination of the activities of the hundreds of thousands of individual amoebae that compose the grex may in …

grey crescent
<biology> A region near the equator of the surface in the fertilized egg of various amphibia, often of greyish colour, that appears to contain special morphogenetic properties. ... (18 Nov 1997) ...

grey matter
<anatomy> Gray matter, the thinking brain, appears gray because it is composed of numerous nerve cells and blood vessels. ... The outer layer of the cerebrum - the cerebral cortex and areas deep within the brain - the basal ganglia, are made up of grey matter. ... See: white matter. ... (16 Dec 1997) ...

Grey Turner's sign
<clinical sign> Local areas of discoloration about the umbilicus and in the region of the loins, in acute haemorrhagic pancreatitis and other causes of retroperitoneal haemorrhage. ... (05 Mar 2000) ...

GRH
Synonym for gonadotropin-releasing hormone ... gonadotrophin-releasing hormone ...

grid
An electric utility's system for distributing power. ... (05 Dec 1998) ...

grid connection
Joining a plant that generates electric power to a utility system so that electricity can flow in either direction between the utility system and the plant. ... (05 Dec 1998) ...

grid ratio
In a radiographic scatter-absorbing grid, the ratio of the height to the width of the gaps between lead strips; a higher grid ratio removes more scattered radiation but requires more careful X-ray tube positioning to avoid grid cutoff of the primary radiation beam. ... (05 Mar 2000) ...

gridiron
1. A grated iron utensil for broiling flesh and fish over coals. ... 2. An openwork frame on which vessels are placed for examination, cleaning, and repairs. Gridiron pendulum. See Pendulum. ... <engineering> Gridiron valve, a slide valve with several parallel perforations corresponding to openings in the seat on which the valve moves. ... Origi …

Gridley, Mary
<person> U.S. Medical technologist, 1908-1954. ... See: Gridley's stain, Gridley's stain for fungi. ... (05 Mar 2000) ...

Gridley's stain
<technique> For fungi, a method for fixed tissue sections based on Bauer's chromic acid leucofuchsin stain with the addition of Gomori's aldehyde fuchsin stain and metanil yellow as counterstains; against a yellow background, hyphae, conidia, yeast capsules, elastin, and mucin appear in different shades of blue to purple. ... (05 Mar 2000) ...

grief
Sadness associated with loss. ... (16 Dec 1997) ...

Griesinger, Wilhelm
<person> German neurologist, 1817-1868. ... See: Griesinger's disease, Griesinger's symptom, bilious typhoid of Griesinger. ... (05 Mar 2000) ...

Griesinger's disease
Bilious typhoid of Griesinger, a severe form of louse-borne relapsing fever caused by Borrelia recurrentis and causing high fever, epistaxis, dyspnea, intense jaundice, purpura, and splenomegaly. ... (05 Mar 2000) ...

Griesinger's sign
<clinical sign> Erythema and oedema over the posterior mastoid process resulting from septic thrombosis of the mastoid emissary vein and thrombophlebitis of the sigmoid sinus. ... (05 Mar 2000) ...

Griesinger's symptom
Oedema of the superficial tissues at the tip of the mastoid process in cases of thrombosis of the sigmoid sinus. ... (05 Mar 2000) ...

Griffith, Frederick
<person> A bacteriologist who discovered that if he put pathogenic (disease-causing) pneumococcus bacteria which had been killed by heat in with nonpathogenic pneumococcus bacteria which were alive, then the live, nonpathogenic bacteria would become pathogenic. His work became the groundwork for other scientists to discover that DNA was the f …

griffon
1. A fabulous monster, half lion and half eagle. It is often represented in Grecian and Roman works of art. ... 2. A representation of this creature as an heraldic charge. ... 3. <zoology> A species of large vulture (Gyps fulvus) found in the mountainous parts of Southern Europe, North Africa, and Asia Minor; called also gripe, and grype. It is …

grig
1. <zoology> A cricket or grasshopper. Any small eel. ... The broad-nosed eel See Glut. ... 2. Heath. As merry as a grig [etymology uncertain], a saying supposed by some to be a corruption of 'As merry as a Greek; ' by others, to be an allusion to the cricket. ... Origin: Cf. Sw. Krak little creature, reptile; or D. Kriek cricket, E. Cricket. …

grim
Of forbidding or fear-inspiring aspect; fierce; stern; surly; cruel; frightful; horrible. 'Whose grim aspect sets every joint a-shaking.' (Shak). 'The ridges of grim war.' (Milton) ... Synonym: Fierce, ferocious, furious, horrid, horrible, frightful, ghastly, grisly, hideous, stern, sullen, sour. ... Origin: AS. Grim; akin to G. Grimm, equiv. To G. & …

grimace
A distortion of the countenance, whether habitual, from affectation, or momentary aad occasional, to express some feeling, as contempt, disapprobation, complacency, etc.; a smirk; a made-up face. 'Moving his face into such a hideons grimace, that every feature of it appeared under a different distortion.' (Addison) ... 'Half the French words used af …

grinder
1. One who, or that which, grinds. ... 2. One of the double teeth, used to grind or masticate the food; a molar. ... 3. <zoology> The restless flycatcher (Seisura inquieta) of Australia; called also restless thrush and volatile thrush. It makes a noise like a scissors grinder, to which the name alludes. ... <medicine> Grinder's asthma, pht …

grinding
Synonym for abrasion ... 1. <pathology> The wearing away of a substance or structure (such as the skin or the teeth) through some unusual or abnormal mechanical process. ... 2. <clinical sign> A superficial injury to the skin or other body tissue caused by rubbing or scraping resulting in an area of body surface denuded of skin or mucous …

grinding surface
Synonym for denture occlusal surface ... That portion of the surface of a denture that makes contact or near contact with the corresponding surface of an opposing denture or tooth. ... Synonym: facies occlusalis dentis, facies masticatoria, grinding surface, masticating surface, masticatory surface, occlusal surface. ... (05 Mar 2000) ...

grinding-in
A term used to denote the act of correcting occlusal disharmonies by grinding the natural or artificial teeth. ... (05 Mar 2000) ...

gripe
<zoology> A vulture; the griffin. 'Like a white hind under the gripe's sharp claws.' (Shak) Gripe's egg, an alchemist's vessel. ... See: Grype. ... 1. Grasp; seizure; fast hold; clutch. 'A barren scepter in my gripe.' (Shak) ... 2. That on which the grasp is put; a handle; a grip; as, the gripe of a sword. ... 3. <mechanics> A device for gr …

griseofulvin
<drug> Griseofulvin is a fungicide which works by hindering mitosis, in particular by interfering with the spindle and halting chromosome movement during the anaphase stage of mitosis. The compound is produced by the fungus Penicillium griseofulvum. ... (13 Nov 1997) ...

griseus
Synonym: gray. ... Origin: L. ... (05 Mar 2000) ...

grisly
Frightful; horrible; dreadful; harsh; as, grisly locks; a grisly specter. 'Grisly to behold.' 'A man of grisly and stern gravity.' (Robynson (More's Utopia)) Grisly bear. ... <zoology> See Grizzly. ... Origin: OE, grisly, grislich, AS. Grislic, gryslic, fr. Grsan to shudder; cf. OD. Grijselick horrible, OHG. Grisenl?ch, and also AS. Gre?san to …

Grisolle, Augustin
<person> French physician, 1811-1869. ... See: Grisolle's sign. ... (05 Mar 2000) ...

Grisolle's sign
<clinical sign> An obsolete sign; in smallpox, the continued presence and palpability of papules when the skin is stretched. ... (05 Mar 2000) ...

grison
1. <zoology> A South American animal of the family Mustelidae (Galictis vittata). It is about two feet long, exclusive of the tail. Its under parts are black. Also called South American glutton. A South American monkey (Lagothrix infumatus), said to be gluttonous. ... 2. <geography> Inhabitants of the eastern Swiss Alps, the largest and …

Grisonella ratellina
A South American weasel, a reservoir host of Trypanosoma cruzi. ... (05 Mar 2000) ...

grist
1. Ground corn; that which is ground at one time; as much grain as is carried to the mill at one time, or the meal it produces. 'Get grist to the mill to have plenty in store.' (Tusser. Q) ... 2. Supply; provision. ... 3. In rope making, a given size of rope, common grist being a rope three inches in circumference, with twenty yarns in each of the th …

grit
1. Sand or gravel; rough, hard particles. ... 2. The coarse part of meal. ... 3. Grain, especially. Oats or wheat, hulled and coarsely ground; in high milling, fragments of cracked wheat smaller than groats. ... 4. <geology> A hard, coarse-grained siliceous sandstone; as, millstone grit; called also gritrock and gritstone. The name is also appli …

Gritti-Stokes amputation
Supracondylar amputation of the femur, the patella being preserved and applied to the end of the bone, its articular cartilage being removed so as to obtain union. ... Synonym: Gritti's operation. ... (05 Mar 2000) ...

Gritti, Rocco
<person> Italian surgeon, 1828-1920. ... See: Gritti's operation, Gritti-Stokes amputation. ... (05 Mar 2000) ...

Gritti's operation
Synonym for Gritti-Stokes amputation ... Supracondylar amputation of the femur, the patella being preserved and applied to the end of the bone, its articular cartilage being removed so as to obtain union. ... Synonym: Gritti's operation. ... (05 Mar 2000) ...

gro
See: melanoma growth stimulatory protein. ... (18 Nov 1997) ...

groan
1. To give forth a low, moaning sound in breathing; to utter a groan, as in pain, in sorrow, or in derision; to moan. 'For we . . . Do groan, being burdened.' (2 Cor. V. 4) 'He heard the groaning of the oak.' (Sir W. Scott) ... 2. To strive after earnestly, as with groans. 'Nothing but holy, pure, and clear, Or that which groaneth to be so.' (Herber …

Grocco, Pietro
<person> Italian physician, 1857-1916. ... See: Grocco's sign, Grocco's triangle, Orsi-Grocco method. ... (05 Mar 2000) ...

Grocco's sign
<clinical sign> Acute dilation of the heart following a muscular effort, described in Graves' disease; also occurring in various forms of myocardiopathy, extension of the liver dullness several centimeters to the left of the midspinal line in cases of enlargement of that organ. ... (05 Mar 2000) ...

Grocco's triangle
A triangular patch of dullness at the base of the chest alongside the spinal column, on the side opposite a pleural effusion. ... Synonym: paravertebral triangle. ... (05 Mar 2000) ...

grocer
A trader who deals in tea, sugar, spices, coffee, fruits, and various other commodities. ... <medicine> Grocer's itch, a disease of the akin, caused by handling sugar and treacle. ... Origin: Formerly written grosser, orig, one who sells by the gross, or deals by wholesale, fr. F. Grossier, marchand grossier, fr. Gros large, great. See Gross.
grocer's itch
A vesicular dermatitis seen in grocers and bakers who handle sugar or flour; caused by a mite of the genus Glycophagus. ... (05 Mar 2000) ...

groEL
Synonym for chaperonins ... A class of sequence-related molecular chaperones found in bacteria, mitochondria, and plastids. Chaperonins are abundant constitutive proteins that increase in amount after stresses such as heat shock, bacterial infection of macrophages, and an increase in the cellular content of unfolded proteins. Bacterial chaperonins a …

groel protein
A chaperonin 60 heat-shock protein isolated from escherichia coli. ... (12 Dec 1998) ...

Groenouw, Arthur
<person> German ophthalmologist, 1862-1945. ... See: Groenouw's corneal dystrophy. ... (05 Mar 2000) ...

Groenouw's corneal dystrophy
A granular type of corneal dystrophy, with autosomal dominant inheritance, a macular type of corneal dystrophy, with autosomal recessive inheritance. ... (05 Mar 2000) ...

groes protein
A chaperonin 10 heat-shock protein isolated from escherichia coli. ... (12 Dec 1998) ...

groin
<anatomy> The area where the thigh meets the hip. ... (12 May 1997) ...

groin ulcer
Synonym for granuloma inguinale tropicum ... An elongated ulcer, with elevated papillary edges, sometimes occurring in the groin in persons in the tropics. ... Synonym: groin ulcer. ... (05 Mar 2000) ...

Gronblad-Strandberg syndrome
<syndrome> Angioid streaks of the retina together with pseudoxanthoma elasticum of the skin. ... (05 Mar 2000) ...

Gronblad, Ester
<person> Swedish ophthalmologist, *1898. ... See: Gronblad-Strandberg syndrome. ... (05 Mar 2000) ...

grooming
An animal's cleaning and caring for the body surface. This includes preening, the cleaning and oiling of feathers with the bill or of hair with the tongue. ... (12 Dec 1998) ...

groove
1. A furrow, channel, or long hollow, such as may be formed by cutting, molding, grinding, the wearing force of flowing water, or constant travel; a depressed way; a worn path; a rut. ... 2. Hence: The habitual course of life, work, or affairs; fixed routine. 'The gregarious trifling of life in the social groove.' (J. Morley) ... 3. [See Grove. ... &l …

groove for arch of aorta
A broad, deep sulcus arching superiorly over the hilus on the mediastinal surface of the left lung formed as a result of the aortic arch impressing or indenting the lung. ... (05 Mar 2000) ...

groove for auditory tube
A furrow on the inner surface of the posterior border of the greater wing of the sphenoid bone, for the cartilaginous auditory tube. ... Synonym: sulcus tubae auditivae, pharyngotympanic groove. ... (05 Mar 2000) ...

groove for inferior petrosal sinus
A groove lodging the inferior petrosal sinus, formed by union of similarly named grooves in the petrous part of the temporal bone and the basilar part of the occipital bone. ... Synonym: sulcus sinus petrosi inferioris, inferior petrosal groove, inferior petrosal sulcus. ... (05 Mar 2000) ...

groove for inferior venae cava
A groove on the posterior surface of the liver between the caudate lobe and the right lobe which gives passage to the inferior vena cava. ... Synonym: sulcus venae cavae, fossa venae cavae, sulcus for vena cava. ... (05 Mar 2000) ...