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

Gunn phenomenon
Synonym for jaw-winking syndrome ... <syndrome> An increase in the width of the eye lids during chewing, sometimes with a rhythmic elevation of the upper lid when the mouth is open and ptosis when the mouth is closed. ... Synonym: Gunn phenomenon, Gunn's syndrome, jaw-winking phenomenon, jaw-working reflex, Marcus Gunn phenomenon, Marcus Gunn s …

Gunn pupil
Synonym for Marcus Gunn pupil ... Relative afferent pupillary defect. ... Synonym: Gunn pupil. ... (05 Mar 2000) ...

Gunn, Robert Marcus
<person> British ophthalmologist, 1850-1909. ... See: Gunn phenomenon, Gunn's dots, Gunn's sign, Gunn's syndrome, Marcus Gunn pupil. ... (05 Mar 2000) ...

Gunn's crossing sign
<clinical sign> Retinal arteriovenous crossing with venous compression in hypertensive disease. ... (05 Mar 2000) ...

Gunn's dots
Minute, highly glistening, white or yellowish specks usually seen in the posterior part of the fundus; nonpathologic. ... (05 Mar 2000) ...

Gunn's sign
<clinical sign> Compression of the underlying vein at arteriovenous crossings seen ophthalmoscopically in arteriolar sclerosis, on alternate stimulation with light, the pupil of an eye with optic nerve transmission defect constricts poorly or even dilates when stimulated (a relative afferent pupillary defect). ... Synonym: Marcus Gunn's sign.< …

Gunn's syndrome
Synonym for jaw-winking syndrome ... <syndrome> An increase in the width of the eye lids during chewing, sometimes with a rhythmic elevation of the upper lid when the mouth is open and ptosis when the mouth is closed. ... Synonym: Gunn phenomenon, Gunn's syndrome, jaw-winking phenomenon, jaw-working reflex, Marcus Gunn phenomenon, Marcus Gunn s …

Gunning splint
A prosthesis fabricated from models of endentulous maxillary and mandibular arches in order to aid in reduction and fixation of a fracture. ... (05 Mar 2000) ...

Gunning, Jan
<person> Dutch chemist, 1827-1901. ... See: Gunning's reaction. ... (05 Mar 2000) ...

Gunning, Thomas
<person> U.S. Dentist, 1813-1889. ... See: Gunning splint. ... (05 Mar 2000) ...

Gunning's reaction
The formation of iodoform from acetone by iodine and ammonia in alcohol. ... (05 Mar 2000) ...

gunpowder
<chemistry> A black, granular, explosive substance, consisting of an intimate mechanical mixture of niter, charcoal, and sulphur. It is used in gunnery and blasting. ... Gunpowder consists of from 70 to 80 per cent of niter, with 10 to 15 per cent of each of the other ingredients. Its explosive energy is due to the fact that it contains the ne …

gunshot wound
A wound made with a bullet or other missile projected by a firearm. ... (05 Mar 2000) ...

gunstock deformity
A form of cubitus varus resulting from condylar fracture at the elbow in which the axis of the extended forearm is not continuous with that of the arm but is displaced toward midline. ... (05 Mar 2000) ...

gunter's scale
A scale invented by the Rev. Edmund Gunter (1581-1626), a professor of astronomy at Gresham College, London, who invented also Gunter's chain, and Gunter's quadrant. ... Gunter's scale is a wooden rule, two feet long, on one side of which are marked scales of equal parts, of chords, sines, tangents, rhombs, etc, and on the other side scales of logar …

Gunz, Justus
<person> German anatomist, 1714-1751. ... See: Gunz' ligament. ... (05 Mar 2000) ...

Gunz' ligament
<anatomy> A portion of the superficial layer of the obturator membrane. ... (05 Mar 2000) ...

Gunzberg, Alfred
<person> German physician, *1861. ... See: Gunzberg's reagent, Gunzberg's test. ... (05 Mar 2000) ...

Gunzberg's reagent
Phloroglucin and vanillin used as a reagent in Gunzberg's test. ... (05 Mar 2000) ...

Guo
Symbol for guanosine. ... (05 Mar 2000) ...

gurgling rale
Coarse sound heard over large cavities or over trachea nearly filled with secretions. ... (05 Mar 2000) ...

gurnet
<zoology> One ofseveral European marine fishes, of the genus Trigla and allied genera, having a large and spiny head, with mailed cheeks. Some of the species are highly esteemed for food. The name is sometimes applied to the American sea robins. ... Alternative forms: gournet] Plyling gurnard. See Flying. ... Origin: OF. Gornal, gournal, gornar …

gurney
A stretcher or cot with wheels used to transport hospital patients. ... Origin: Scottish gurn, to grimace in pain; Sir Goldsworthy Gurney, British physician and inventor, 1793-1875 ... (05 Mar 2000) ...

gush
1. To issue with violence and rapidity, as a fluid; to rush forth as a fluid from confinement; to flow copiously. 'He smote the rock that the waters gushed out.' (Ps ixxviii 20) 'A sea of blood gushed from the gaping wound.' (Spenser) ... 2. To make a sentimental or untimely exhibition of affection; to display enthusiasm in a silly, demonstrative ma …

Gussenbauer, Carl
<person> German surgeon, 1842-1903. ... See: Gussenbauer's suture. ... (05 Mar 2000) ...

Gussenbauer's suture
A figure-of-8 suture for the intestine, resembling the Czerny-Lembert suture but not including the mucous membrane. ... (05 Mar 2000) ...

gusset
1. A small piece of cloth inserted in a garment, for the purpose of strengthening some part or giving it a tapering enlargement. 'Seam and gusset and band.' (Hood) ... 2. Anything resembling a gusset in a garment; as: A kind of bracket, or angular piece of iron, fastened in the angles of a structure to give strength or stiffness; especially, the par …

gustation
1. The act of tasting. ... 2. The sense of taste. ... Origin: L. Gustatio, fr. Gusto, pp. -atus, to taste ... (05 Mar 2000) ...

gustatory
Relating to gustation, or taste. ... (05 Mar 2000) ...

gustatory anaesthesia
Synonym for ageusia ... Absence of the sense of taste. ... (12 Dec 1998) ...

gustatory cells
Synonym for taste cells ... Darkly staining cell's in a taste bud that appear to have extending into the gustatory pore long hair-like microvilli containing a number of closely packed microtubules; the taste cell's stand in synaptic contact with sensory nerve fibres of the facial, glossopharyngeal, or vagus nerves. ... Synonym: gustatory cells. ... (0 …

gustatory hallucination
The sensation of taste in the absence of a gustatory stimulus; may be seen in temporal lobe epilepsy. ... (05 Mar 2000) ...

gustatory hyperesthesia
Synonym for hypergeusia ... Abnormal acuteness of the sense of taste. ... Synonym: gustatory hyperesthesia, oxygeusia. ... Origin: hyper-+ G. Geusis, taste ... (05 Mar 2000) ...

gustatory lemniscus
The uncrossed secondary-sensory fibre system ascending from the rhombencephalic gustatory nucleus to the parabrachial nuclei (rostral pontine level) and directly to the thalamic gustatory nucleus (ventral postero-medial nucleus, pars parvicellularis). ... (05 Mar 2000) ...

gustatory nucleus
See: rhombencephalic gustatory nucleus, thalamic gustatory nucleus. ... (05 Mar 2000) ...

gustatory organ
Located in the papillae of the mucous membrane of the tongue, chiefly in the vallate papillae. ... Synonym: organum gustus, organ of taste. ... (05 Mar 2000) ...

gustatory pore
The minute opening of a taste bud on the surface of the oral mucosa through which the gustatory hairs of the specialised neuroepithelial gustatory cells project. ... Synonym: porus gustatorius, taste pore. ... (05 Mar 2000) ...

gustatory rhinorrhoea
Watery nasal discharge associated with stimulation of the sense of taste. ... (05 Mar 2000) ...

gustatory sweating syndrome
Synonym for auriculotemporal nerve syndrome ... <syndrome> Localised flushing and sweating of the ear and cheek in response to eating. ... Synonym: Frey's syndrome, gustatory sweating syndrome. ... (05 Mar 2000) ...

gustatory-sudorific reflex
Sweating, especially over the face, when chewing food. ... See: auriculotemporal nerve syndrome. ... (05 Mar 2000) ...

gustducin
<protein> Taste cell specific GTP-binding protein. Novel G_ subunit, resembles transducin more than any other G_. ... (18 Nov 1997) ...

gut
1. A narrow passage of water; as, the Gut of Canso. ... 2. An intenstine; a bowel; the whole alimentary canal; the enteron; (pl) bowels; entrails. ... 3. One of the prepared entrails of an animal, especially. Of a sheep, used for various purposes. See Catgut. ... 4. The sac of silk taken from a silkworm (when ready to spin its cocoon), for the purpose …

gut-associated lymphoid tissue
<physiology> Peripheral lymphoid organ consisting of lymphoid tissue associated with the gut (Peyer's patches, tonsils, mesenteric lymph nodes and the appendix). ... It is especially rich in B-cells and is responsible for localised immunity to pathogens such as bacteria, viruses, and parasites. ... (20 Sep 2002) ...

Guthrie test
<investigation> Bacterial inhibition assay for direct measurement of serum phenylalanine; in widespread use for detection of phenylketonuria in the newborn. ... (05 Mar 2000) ...

Guthrie, George
<person> English ophthalmologist. ... Lived: 1785-1856. ... See: Guthrie's muscle. ... (05 Mar 2000) ...

Guthrie, R
<person> U.S. Paediatrician, *1916. ... See: Guthrie test. ... (05 Mar 2000) ...

Guthrie's muscle
Synonym for sphincter urethrae ... Origin, ramus of pubis; insertion, with fellow in median raphe behind and in front of urethra; action, constricts membranous urethra; nerve supply, pudendal. ... Synonym: musculus sphincter urethrae, external urethral sphincter, Guthrie's muscle, musculus compressor urethrae, musculus constrictor urethrae, musculus …

Gutmann, Carl
<person> German physician, *1872. ... See: Michaelis-Gutmann body. ... (05 Mar 2000) ...

gutta
1. A drop. ... 2. One of a series of ornaments, in the form of a frustum of a cone, attached to the lower part of the triglyphs, and also to the lower faces of the mutules, in the Doric order; called also campana, and drop. Gutta serena [L, lit. Serene or clear drop. ... <medicine> The listel or band from which the guttae hang. ... Source: Webst …

gutta serena
Former term for blindness of unknown aetiology; the serena suggested that the anterior segment of the eye was clear and tranquil, that there was no visible cause for the blindness, no corneal scar, no inflammation, no cataract. ... Thus, gutta serena became the code word for blindness due to some unfathomable posterior cause, some damage to retina, …

gutta-percha
<botany> A concrete juice produced by various trees found in the Malayan archipelago, especially by the Isonandra, or Dichopsis, Gutta. ... It becomes soft, and unpressible at the tamperature of boiling water, and, on cooling, retains its new shape. It dissolves in oils and ethers, but not in water. In many of its properties it resembles caout …

gutta-percha cone
<dentistry> A cone-shaped, semi rigid root canal filling material composed of gutta-percha and zinc oxide. ... (05 Mar 2000) ...

gutta-percha points
<dentistry> Cones of a gutta percha compound used for filling root canals in conjunction with a cement, paste, or plastic. ... (05 Mar 2000) ...

guttae
Plural of gutta. ... Origin: L. ... (05 Mar 2000) ...

guttat
<abbreviation> L. Guttatim, drop by drop. ... (05 Mar 2000) ...

guttate
Of the shape of, or resembling, a drop, characterizing certain cutaneous lesions. ... (05 Mar 2000) ...

guttate choroidopathy
An obsolete term for macular drusen. ... (05 Mar 2000) ...

guttation
Formation of drops of water on plants from moisture in air. ... The process of water being exuded from hydathodes at the enlarged terminations of veins around the margins of the leaves. ... (09 Oct 1997) ...

gutter
1. A channel at the eaves of a roof for conveying away the rain; an eaves channel; an eaves trough. ... 2. A small channel at the roadside or elsewhere, to lead off surface water. 'Gutters running with ale.' (Macaulay) ... 3. Any narrow channel or groove; as, a gutter formed by erosion in the vent of a gun from repeated firing. Gutter member, one of …

gutter dystrophy of cornea
A marginal furrow usually inferiorly about 1 mm from the limbus; and sometimes bilateral. ... Synonym: keratoleptynsis. ... (05 Mar 2000) ...

gutter fracture
A long, narrow, depressed fracture of the skull. ... (05 Mar 2000) ...

gutter wound
A tangential wound that makes a furrow without perforating the skin. ... Synonym: crease wound, glancing wound. ... (05 Mar 2000) ...

guttural
Relating to the throat. ... (05 Mar 2000) ...

guttural duct
Synonym for auditory tube ... A tube leading from the tympanic cavity to the nasopharynx; it consists of an osseous (posterolateral) portion at the tympanic end, and a fibrocartilaginous (anteromedial) portion at the pharyngeal end; where the two portions join, in the region of the sphenopetrosal fissure, is the narrowest portion of the tube (isthmu …

guttural pouch
A structure in the horse which is a diverticulum of the auditory (eustachian) tube; subject to chronic infections and inflammation and frequently necessitating surgery for relief. ... Hartmann's pouch, a spheroid or conical pouch at the junction of the neck of the gallbladder and the cystic duct. ... Synonym: ampulla of gallbladder, fossa provesicali …

guttural pulse
A pulsation felt in the throat. ... (05 Mar 2000) ...

guttural rale
Sound heard over the lung but resulting from upper airway obstruction. ... (05 Mar 2000) ...

gutturotetany
Laryngeal spasm causing a temporary stutter. ... Origin: L. Guttur, throat, + G. Tetanos, convulsive tension ... (05 Mar 2000) ...

Gutzeit, Max
<person> German chemist, 1847-1915. ... See: Gutzeit's test. ... (05 Mar 2000) ...

Gutzeit's test
A test for arsenic; a piece of zinc and a little sulfuric acid are added to the suspected liquid which is then boiled; a bit of filter paper with a silver nitrate solution is held in the vapor and will turn yellow if arsenic is present. ... (05 Mar 2000) ...

guyana
A republic in the north of south america, east of brazil. Its capital is georgetown. It was formerly called british guiana and its history is allied with that of the region of guiana which comprised british guiana, french guiana, and dutch guiana (now suriname). It was founded about 1620 by the dutch and settled in the 18th century by many non-dutc …

Guyon, Felix
<person> French surgeon, 1831-1920. ... See: Guyon's amputation, Guyon's isthmus, Guyon's sign. ... (05 Mar 2000) ...

Guyon's amputation
Amputation above the malleoli, a modification of Syme's amputation. ... (05 Mar 2000) ...

Guyon's isthmus
Synonym for isthmus of uterus ... An elongated constriction at the junction of the body and cervix of the uterus. ... Synonym: isthmus uteri, Guyon's isthmus, orificium internum uteri, os uteri internum, ostium uteri internum. ... (05 Mar 2000) ...

Guyon's sign
<clinical sign> Ballottement of the kidney in cases of nephroptosis, especially when there is also a renal tumour, the hypoglossal nerve lies directly upon the external carotid artery, whereby this vessel may be distinguished from the internal carotid when ligation is necessary. ... (05 Mar 2000) ...

guzzle
To swallow liquor greedily; to drink much or frequently. 'Those that came to guzzle in his wine cellar.' (Milton) 'Well-seasoned bowls the gossip's spirits raise, who, while she guzzles, chats the doctor's praise.' (Roscommon) 'To fat the guzzling hogs with floods of whey.' (Gay) ... Origin: OP. Gosillier, prob. Orig, to pass through the throat; aki …

GVH
Synonym for graft-versus-host disease ... <haematology> A common and serious, complication of bone marrow transplantation where there is a reaction of donated bone marrow against a patient's own tissue. ... When donor lymphocytes or a graft containing lymphocytes that are immunologically competent are given to a patient that has low immunologic …

GVH disease
Synonym for graft-versus-host disease ... <haematology> A common and serious, complication of bone marrow transplantation where there is a reaction of donated bone marrow against a patient's own tissue. ... When donor lymphocytes or a graft containing lymphocytes that are immunologically competent are given to a patient that has low immunologic …

GVHD
Synonym for graft-versus-host disease ... <haematology> A common and serious, complication of bone marrow transplantation where there is a reaction of donated bone marrow against a patient's own tissue. ... When donor lymphocytes or a graft containing lymphocytes that are immunologically competent are given to a patient that has low immunologic …

GVHR
Synonym for graft-versus-host reaction ... graft-versus-host disease ...

Gy
Synonym for Gray ... <radiobiology, unit> The new international system unit (SI unit) of absorbed dose of radiation (Gy), 1 Gy = 1 J kg-1 = 100 rad. ... (16 Dec 1997) ...

gym-diol
A compound in which both hydroxyl groups are attached to the same carbon atom; an intermediate in many reactions. ... (05 Mar 2000) ...

Gymnamoebida
<organism> An order of naked amoebae lacking a shell (testa), although there may be an enveloping layer of condensed ectoplasm; includes the genus Amoeba. ... Origin: G. Gymnos, naked, + amoibe, change (amoeba) ... (05 Mar 2000) ...

gymnastics
Systematic physical exercise. This includes calisthenics, a system of light gymnastics for promoting strength and grace of carriage. ... (12 Dec 1998) ...

Gymnoascaceae
A family of fungi which includes the ascomycetous state of many of the dermatophytes and several of the systemic pathogens for humans (Histoplasma capsulatum, Blastomyces dermatitidis, etc.). Until the sexual forms were recognised, these pathogens were classified with Fungi Imperfecti. ... (05 Mar 2000) ...

gymnophobia
<psychology> Morbid dread of the sight of a naked person or of an uncovered part of the body. ... Origin: G. Gymnos, naked, + phobos, fear ... (05 Mar 2000) ...

gymnosperm
A seed plant with the ovules borne on the surface of a sporophyll. ... Compare: angiosperm. ... (09 Oct 1997) ...

gymnospermae
An important division of the plant kingdom, being woody plants with alternation of generations, having the gametophyte retained on the sporophyte and seeds produced on the surface of the sporophylls and not enclosed in an ovary. ... (09 Oct 1997) ...

gymnosperms
Gymnosperms are a group of vascular plants whose seeds are not enclosed by a ripened ovary (fruit). Gymnosperms are distinguished from the other major group of seed plants, the angiosperms, whose seeds are surrounded by an ovary wall. The seeds of many gymnosperms (literally, 'naked seed') are borne in cones and are not visible. Taxonomists now rec …

gymnothecium
An ascomycetous fruiting body composed of loosely interwoven hyphae. ... Origin: G. Gymnos, naked, + thekion, case, dim. Fr. Theke, box ... (05 Mar 2000) ...

gymnotus
<zoology> A genus of South American fresh water fishes, including the Gymnotus electricus, or electric eel. It has a greenish, eel-like body, and is possessed of electric power. 'One fearful shock, fearful but momentary, like from the electric blow of the gymnotus.' (De Quincey) ... Origin: NL, fr. Gr. Gymnos naked + the back: cf. F. Gymnote.< …

gyn-
<prefix> Relating to the female. As in gynaecology. ... Alternative forms: Gyne-, gyneco-, gyno-. ... Origin: G. Gyne, woman ... (21 Jun 2000) ...

gynaecandrous
<plant biology> Having staminate and pistillate flowers in the same spike or spikelet, the latter above the former. ... (17 Mar 1998) ...

gynaecium
<plant biology> The female organs of the flower, consisting of one or more carpels forming one or several ovaries with their stigmas and styles. ... Origin: gynh = a woman or female. ... (17 Mar 1998) ...

gynaecologic oncology
<study> The medical study and treatment of cancers of the female reproductive organs such as; ovarian cancer, cervical cancer, uterine cancer. ... Origin: gynh = a woman or female. ... (17 Mar 1998) ...

gynaecological
<gynaecology> Of or pertaining to gynaecology. ... Origin: gynh = a woman or female. ... (17 Mar 1998) ...

gynaecological oncologist
<specialist> A specialist who is expert in the treatment of cancer affecting the female reproductive system. ... Origin: gynh = a woman or female. ... (17 Mar 1998) ...

gynaecologist
<specialist> A medical doctor who specialises in gynecology and diseases affecting the female reproductive system. A gynaecologist who treats cancer is a gynaecological oncologist - and this involves special training. ... Origin: gynh = a woman or female. ... (17 Mar 1998) ...

gynaecology
<study> A branch of medicine dealing with the diagnosis and treatment of disorders affecting the female reproductive organs. ... Origin: gynh = a woman or female. ... (09 Oct 1997) ...

gynaecomastia
<clinical sign> An excessive development of the male mammary glands, even to the functional state. ... Temporary enlargement of the breasts is not unusual or abnormal in boys during adolescence or during recovery from malnutrition. Gynaecomastia may be abnormal as, for example, in Klinefelter's syndrome. ... Origin: Gr. Mastos = breast, gynh = …