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

hardened pelvis
Synonym for frozen pelvis ... A condition in which the true pelvis is indurated throughout, especially by carcinoma. ... Synonym: hardened pelvis. ... (05 Mar 2000) ...

harderian gland
A sebaceous gland that, in some animals, acts as an accessory to the lacrimal gland. The harderian gland excretes fluid that facilitates movement of the third eyelid. ... (12 Dec 1998) ...

hardiness
A health-enhancing behaviour trait believed to increase one's resistance to illness, characterised by a high level of personal control, commitment, and action in responding to events of daily life. ... Origin: M.E., fr. O.Fr. Hardi, fr. Germanic ... (05 Mar 2000) ...

Harding
Harold E., 20th century British pathologist. ... See: Harding-Passey melanoma. ... (05 Mar 2000) ...

Harding-Passey melanoma
<tumour> A melanin-forming tumour that arose spontaneously in a non-inbred mouse, and that is transplantable to mice of many strains but does not ordinarily metastasize. ... (05 Mar 2000) ...

hardness
<chemistry> Total concentration of calcium and magnesium ions, expressed as the equivalent concentration (mg/L) of calcium carbonate. ... Hard water is water that contains lots of calcium carbonate and other minerals. ... (09 Oct 1997) ...

hardness scale
A qualitative scale in which minerals are classified in order of their increasing hardness, based on the fact that the harder of two materials will scratch the softer and will not be scratched by it. The scale lists 15 substances: 1, talc; 2, gypsum; 3, calcite; 4, fluorite; 5, apatite; 6, orthoclase, periclase; 7, vitreous pure silica; 8, quartz, …

hardpan
<botany, ecology> A very dense soil layer caused by compaction or cementation of soil particles by organic matter, silica, sesquioxides (aluminum and iron) or calcium carbonate, for example. ... (09 Oct 1997) ...

hardware
The electronic component of a computer. ... (05 Mar 2000) ...

hardware disease
Synonym for traumatic gastritis ... A condition of cattle, caused by the penetration of the stomach wall, usually the reticulum, by any kind of sharp object (usually metallic) which has been swallowed. ... Synonym: hardware disease, traumatic reticuloperitonitis. ... (05 Mar 2000) ...

hardwoods
Usually broad-leaved and deciduous trees. ... (05 Dec 1998) ...

hardy
1. Bold; brave; stout; daring; resolu?e; intrepid. 'Hap helpeth hardy man alway.' (Chaucer) ... 2. Confident; full of assurance; in a bad sense, morally hardened; shameless. ... 3. Strong; firm; compact. '[A] blast may shake in pieces his hardy fabric.' (South) ... 4. Inured to fatigue or hardships; strong; capable of endurance; as, a hardy veteran; a …

Hardy-Rand-Ritter test
A test for colour vision deficiency using pseudoisochromatic cards. These excellent cards have not been reprinted by the American Optical Co. Since the plates were accidentally destroyed in 1965. ... (05 Mar 2000) ...

Hardy-Weinberg equilibrium
<genetics> In a population containing the genotypes of AA, aa, and Aa, the frequency of AA will be p2, the frequency of aa will be q2, and the frequency of Aa will be 2 pq at equilibrium, where p is the frequency of A and q is the frequency of a. ... By the Hardy-Weinberg law, a ramdonly-mating population will eventually reach these frequencie …

Hardy-Weinberg law
<genetics> This genetics law states that the frequencyof a given genotype will reach equilibrium in a randomly mating population and will stay constant over many generations in the absence of selection pressures. ... (09 Oct 1997) ...

Hardy, George
<person> English mathematician, 1877-1947. ... See: Hardy-Weinberg equilibrium, Hardy-Weinberg law. ... (05 Mar 2000) ...

Hardy, LeGrand
<person> U.S. Ophthalmologist, 1895-1954. ... See: Hardy-Rand-Ritter test. ... (05 Mar 2000) ...

hare
1. <zoology> A rodent of the genus Lepus, having long hind legs, a short tail, and a divided upper lip. It is a timid animal, moves swiftly by leaps, and is remarkable for its fecundity. ... The species of hares are numerous. The common European hare is Lepustimidus. The northern or varying hare of America (Lepus Americanus), and the prairie h …

hare's eye
Synonym for lagophthalmia ... lagophthalmos ...

harefoot
1. <zoology> A long, narrow foot, carried (that is, produced or extending) forward; said of dogs. ... 2. <botany> A tree (Ochroma Laqopus) of the West Indies, having the stamens united somewhat in the form of a hare's foot. ... 3. <botany> Harefoot clover, a species of clover (Trifolium arvense) with soft and silky heads. ... (06 Mar …

harelip
<clinical sign, dermatology> A lip, commonly the upper one, having a fissure of perpendicular division like that of a hare. ... (06 Mar 1998) ...

harier
Synonym for harrier ... 1. <zoology> One of a small breed of hounds, used for hunting hares. ... 2. <ornithology> One of several species of hawks or buzzards of the genus Circus which fly low and harry small animals or birds, as the European marsh harrier (Circus aerunginosus), and the hen harrier (Circus cyaneus). Harrier hawk, one of se …

harlequin chromosome
<cell biology> A chromosome which, when stained, produces a banded pattern of alternating light and dark segments (also called a harlequin pattern). ... It is made by treating a cell with 5'-bromodeoxyuridine, the chemical incorporates into the cells DNA and when stained is lighter than the DNA around it. ... (09 Oct 1997) ...

harlequin eye
<radiology> Neurofibromatosis, dysplastic greater wing of sphenoid, plagiocephaly, focal calvarial expansion, subdural bleed, brain tumour ... (12 Dec 1998) ...

harlequin foetus
A severe autosomal recessive form of collodian baby in a newborn, usually premature, infant; i.e., a form of ichthyosiform erythroderma characterised by encasement of the body in grayish brown, often fissured plaques resembling plates of armor, and by grotesque deformity of the face, hands, and feet; usually fatal within a few days, although treatm …

harlequin ichthyosis
Foetal form of ichthyosis distinct from lamellar ichthyosis in its patchy character and the poor prospect of the patient surviving the neonatal period. ... (05 Mar 2000) ...

harlequin reaction
Sudden blanching of the lower half of the body of an infant lying on its side, leaving the remaining half of the body the normal pink colour. ... (05 Mar 2000) ...

harlot
1. A churl; a common man; a person, male or female, of low birth. 'He was a gentle harlot and a kind.' (Chaucer) ... 2. A person given to low conduct; a rogue; a cheat; a rascal. ... 3. A woman who prostitutes her body for hire; a prostitute; a common woman; a strumpet. ... Origin: OE.harlot, herlot, a vagabond, OF. Harlot, herlot, arlot; cf. Pr. Arlo …

harmonia
Synonym: plane suture. ... Origin: L. And G. A joining ... (05 Mar 2000) ...

harmonic
A component of complex sound whose frequency is a multiple of the fundamental frequency of the sound. This fundamental frequency is called the first harmonic; the second harmonic has twice the frequency of the fundamental, and so forth. ... (05 Mar 2000) ...

harmonic mean
The mean calculated as the number of values being averaged, divided by the sum of their reciprocals. ... (05 Mar 2000) ...

harmonic suture
Synonym for plane suture ... A simple firm apposition of two smooth surfaces of bones, without overlap, as seen in the lacrimomaxillary suture. ... Synonym: sutura plana, harmonia, harmonic suture. ... (05 Mar 2000) ...

harmonical
1. Concordant; musical; consonant; as, harmonic sounds. 'Harmonic twang! of leather, horn, and brass.' (Pope) ... 2. Relating to harmony, as melodic relates to melody; harmonious; especially, relating to the accessory sounds or overtones which accompany the predominant and apparent single tone of any string or sonorous body. Harmonic interval, the d …

harmonious correspondence
A type of anomalous retinal correspondence in which the angle of the visual direction of the two retinas is equal to the objective angle of strabismus. ... (05 Mar 2000) ...

harmony
1. The just adaptation of parts to each other, in any system or combination of things, or in things, or things intended to form a connected whole; such an agreement between the different parts of a design or composition as to produce unity of effect; as, the harmony of the universe. ... 2. Concord or agreement in facts, opinions, manners, interests, …

harness
1. <zoology> An American bombycid moth (Arctia phalerata of Harris), having, on the fore wings, stripes and bands of buff on a black ground. ... 2. To dress in armor; to equip with armor for war, as a horseman; to array. 'Harnessed in rugged steel.' (Rowe) 'A gay dagger, Harnessed well and sharp as point of spear.' (Chaucer) ... 3. To make read …

harp
1. A musical instrument consisting of a triangular frame furnished with strings and sometimes with pedals, held upright, and played with the fingers. ... 2. <astronomy> A constellation; Lyra, or the Lyre. ... 3. <zoology> Harp seal, a beautiful marine gastropod shell of the genus Harpa, of several species, found in tropical seas. See Harp …

harpaxophobia
<psychology> Morbid fear of robbers. ... Origin: G. Harpax, robber, + phobos, fear ... (05 Mar 2000) ...

harpoon
A spear or javelin used to strike and kill large fish, as whales; a harping iron. It consists of a long shank, with a broad, fiat, triangular head, sharpened at both edges, and is thrown by hand, or discharged from a gun. Harpoon fork, a kind of hayfork, consisting of bar with hinged barbs at one end a loop for a rope at the other end, used for lif …

harpy
1. A fabulous winged monster, ravenous and filthy, having the face of a woman and the body of a vulture, with long claws, and the face pale with hunger. Some writers mention two, others three. 'Both table and provisions vanished guite. With sound of harpies' wings and talons heard.' (Milton) ... 2. One who is rapacious or ravenous; an extortioner. ' …

harrier
1. <zoology> One of a small breed of hounds, used for hunting hares. ... 2. <ornithology> One of several species of hawks or buzzards of the genus Circus which fly low and harry small animals or birds, as the European marsh harrier (Circus aerunginosus), and the hen harrier (Circus cyaneus). Harrier hawk, one of several species of Americ …

Harrington
David O., U.S. Ophthalmologist, *1904. ... See: Harrington-Flocks test. ... (05 Mar 2000) ...

harrington rod insertion
<orthopaedics> A procedure that involves fusing together two or more vertebrae in the spine using either bone grafts or metal rods (Harrington rods). ... This procedure may be used to correct kyphosis or scoliosis. It is also used in those who require spine stabilisation due to vertebral damage from ruptures discs, fractures, osteomyelitis, os …

Harrington-Flocks test
A rapid screening test for visual field defects; patterns are viewed tachistoscopically, and the patterns are visible only when illuminated by a flash of ultraviolet light. Not available since 1970. ... (05 Mar 2000) ...

harringtonines
<chemical> Substances isolated from the seeds of cephalotaxus harringtonia, var. Drupacea. They are esters of the alkaloid cephalotaxine and may be effective as antineoplastic agent. ... Pharmacological action: antineoplastic agent, phytogenic. ... (12 Dec 1998) ...

Harris and Ray test
A test for vitamin C in the urine; a microtitration test of the urine against a known amount of 0.05% aqueous solution of the dye 2,6-dichloroindophenol in 10% acetic acid (usually 0.05 ml of dye is used, roughly equivalent to 0.025 mg of ascorbic acid). ... Synonym: Harris test. ... (05 Mar 2000) ...

Harris syndrome
<syndrome> Excessive insulin production with hypoglycaemia, hunger, jitteriness, tachycardia, and flushing occurring in conditions such as functional disorders of the pancreas, hyperplasia of the islets of Langerhans, or insulinoma. ... (05 Mar 2000) ...

Harris test
Synonym for Harris and Ray test ... A test for vitamin C in the urine; a microtitration test of the urine against a known amount of 0.05% aqueous solution of the dye 2,6-dichloroindophenol in 10% acetic acid (usually 0.05 ml of dye is used, roughly equivalent to 0.025 mg of ascorbic acid). ... Synonym: Harris test. ... (05 Mar 2000) ...

Harris, Henry
<person> U.S. Physician, 1867-1926. ... See: Harris' haematoxylin. ... (05 Mar 2000) ...

Harris, Henry A
<person> English anatomist, 1886-1968. ... See: Harris' lines. ... (05 Mar 2000) ...

Harris, R
<person> 20th century Canadian orthopedist. ... See: Salter-Harris classification of epiphysial plate injuries. ... (05 Mar 2000) ...

Harris, Seale
<person> U.S. Physician, 1870-1957, investigated food conditions and nutritional diseases. ... See: Harris syndrome. ... (05 Mar 2000) ...

Harris, Wilfred
<person> English physician, 1869-1960. ... See: Harris' migraine. ... (05 Mar 2000) ...

Harris' haematoxylin
An alum type of haematoxylin similar to Delafield's haematoxylin, but which uses chemical ripening to produce oxidation of haematoxylin for immediate use. ... (05 Mar 2000) ...

Harris' lines
Synonym for growth arrest lines ... Dense lines parallel to the growth plates of long bones on radiographs, representing temporary slowing or cessation of longitudinal growth. ... Synonym: Harris' lines. ... (05 Mar 2000) ...

Harris' migraine
Synonym for periodic migrainous neuralgia ... Recurrent facial pain and headache, more common in men than in women. ... Synonym: Harris' migraine. ... (05 Mar 2000) ...

Harrison, Edward
<person> English physician, 1766-1838. ... See: Harrison's groove. ... (05 Mar 2000) ...

Harrison's groove
A deformity of the ribs which results from the pull of the diaphragm on ribs weakened by rickets or other softening of the bone. ... (05 Mar 2000) ...

harrow
1. To draw a harrow over, as for the purpose of breaking clods and leveling the surface, or for covering seed; as, to harrow land. 'Will he harrow the valleys after thee?' (Job xxxix. 10) ... 2. To break or tear, as with a harrow; to wound; to lacerate; to torment or distress; to vex. 'My aged muscles harrowed up with whips.' (Rowe) 'I could a tale …

hart
<zoology> A stag; the male of the red deer. See Buck. ... 'Goodliest of all the forest, hart and hind.' (Milton) ... Origin: OE.hart, hert, heort, AS. Heort, heorot; akin to D. Hert, OHG. Hiruz, hirz, G. Hirsch, Icel. Hjortr, Dan. & Sw. Hjort, L. Cervus. ... (06 Mar 1998) ...

hart-tongue
1. <botany> A common British fern (Scolopendrium vulgare), rare in America. ... 2. <botany> A West Indian fern, the Polypodium Phyllitidis of Linnaeus. It is also found in Florida. ... (06 Mar 1998) ...

hart's-ear
<botany> An Asiatic species of Cacalia (Cacalia Kleinia), used medicinally in India. ... (06 Mar 1998) ...

Hartel technique
A method of reaching the gasserian ganglion by passing a needle from the mouth, inserting it about the level of the upper midmolar tooth, and passing it inward until the point reaches the bone in front and to the outer side of the foramen ovale, allowing an alcohol injection to be made for the relief of trigeminal neuralgia. ... (05 Mar 2000) ...

Hartel, Fritz
<person> 20th century German surgeon. ... See: Hartel technique. ... (05 Mar 2000) ...

Hartman, LeRoy
<person> U.S. Dentist, 1893-1951. ... See: Hartman's solution. ... (05 Mar 2000) ...

Hartman's solution
A solution used to desensitise dentin in dental operations; contains thymol, ethyl alcohol, and sulfuric ether. ... (05 Mar 2000) ...

Hartmann, Alexis
<person> U.S. Paediatrician, 1898-1964. ... See: Hartmann's solution, Shaffer-Hartmann method. ... (05 Mar 2000) ...

Hartmann, Arthur
<person> German laryngologist, 1849-1931. ... See: Hartmann's curette. ... (05 Mar 2000) ...

Hartmann, Henri
<person> French surgeon, 1860-1952. ... See: Hartmann's operation, Hartmann's pouch. ... (05 Mar 2000) ...

Hartmann's curette
A curette, cutting on the side, for the removal of adenoids. ... (05 Mar 2000) ...

Hartmann's operation
Resection of the rectosigmoid colon beginning at or just above the peritoneal reflexion and extending proximally, with closure of the rectal stump and end-colostomy. ... (05 Mar 2000) ...

Hartmann's solution
Synonym for lactated Ringer's solution ... A solution containing NaCl, sodium lactate, CaCl2(dihydrate), and KCl in distilled water; used for the same purposes as Ringer's solution. ... Synonym: Hartmann's solution. ... (05 Mar 2000) ...

hartmannella
A genus of free-living amoebae found in fresh water. The cysts usually pass harmlessly through the intestinal tract of man and may thus be found in feces. Occasionally, these organisms cause respiratory tract infections or generalised fatal meningoencephalitis. ... (12 Dec 1998) ...

Hartnup
Surname of British family in which the disease was first described. ... See: Hartnup disease, syndrome. ... (05 Mar 2000) ...

Hartnup disease
<biochemistry> Amino acid transport defect that leads to excessive loss of monoamino monocarboxylic acids (cystine, lysine, ornithine, arginine) in the urine and poor absorption in the gut. ... See: iminoglycinuria. ... (18 Nov 1997) ...

Hartnup disorder
Synonym for Hartnup disease ... <biochemistry> Amino acid transport defect that leads to excessive loss of monoamino monocarboxylic acids (cystine, lysine, ornithine, arginine) in the urine and poor absorption in the gut. ... See: iminoglycinuria. ... (18 Nov 1997) ...

Hartnup syndrome
Synonym for Hartnup disease ... <biochemistry> Amino acid transport defect that leads to excessive loss of monoamino monocarboxylic acids (cystine, lysine, ornithine, arginine) in the urine and poor absorption in the gut. ... See: iminoglycinuria. ... (18 Nov 1997) ...

Hartree-Fock approximation
<radiobiology> A refinement of the Hartree method in which one uses determinants of single-particle wave functions rather than products, thereby introducing exchange terms into the Hamiltonian. ... (06 Mar 1998) ...

harts clover
<botany> Melilot or sweet clover. ... (06 Mar 1998) ...

hartshorn
1. <zoology> The horn or antler of the hart, or male red deer. ... 2. <alchemy> Spirits of hartshorn; volatile salts. Hartshorn plantain, a solution of ammonia in water; so called because formerly obtained from hartshorn shavings by destructive distillation. Similar ammoniacal solutions from other sources have received the same name. ... …

harvest
1. The gathering of a crop of any kind; the ingathering of the crops; also, the season of gathering grain and fruits, late summer or early autumn. 'Seedtime and harvest . . . Shall not cease.' (Gen viii. 22) 'At harvest, when corn is ripe.' (Tyndale) ... 2. That which is reaped or ready to be reaped or gathed; a crop, as of grain (wheat, maize, etc) …

harvest bug
The larva of Trombicula species. ... (05 Mar 2000) ...

harvester ant
Synonym for Pogonomyrmex ... A genus of ants that attack humans and small animals. ... Synonym: harvester ant. ... Origin: G. Pogon, beard, + myrmex, ant ... (05 Mar 2000) ...

harvesting
1. <cell culture> The collecting of cells, organisms, or the growth medium upon which an experimental population (of cells or microorganisms) had grown, so that the collection can be analysed or so biochemicals can be extracted from it. ... 2. <zoology> Harvesting ant, any species of ant which gathers and stores up seeds for food. Many s …

Harvey
William, 1578-1657. English anatomist, physiologist, and physician who first described the circulation of the blood in 1628. He understood that the interventricular septum is not porous so blood can not pass through it. He demonstrated the volume of blood which passes unidirectionally through a segment of a peripheral vein exceeds the volume of blo …

Harvey sarcoma virus
Synonym for ras ... <oncogene> One of a family of oncogenes, first identified as transforming genes of Harvey and Kirsten murine sarcoma viruses. (Name from rat sarcoma because Harvey virus, though a mouse virus, obtained its transforming gene during passage in a rat). Transforming protein coded is p21ras, a GTP-binding protein with GTPase act …

hasamiyami
A fever occurring in Japan in the autumn; resembles Weil's disease, but is milder and is caused by the autumnalis serovar of Leptospira interrogans. ... Synonym: akiyami, autumn fever, sakushu fever, seven-day fever. ... (05 Mar 2000) ...

Haser
Heinrich, German physician, 1811-1884. ... See: Haser's formula, Trapp-Haser formula. ... (05 Mar 2000) ...

Haser's formula
A formula to determine the number of grams of urinary solids per liter, obtained by multiplying 2.33 by the last two figures of the specific gravity of the urine. ... Synonym: Christison's formula, Trapp's formula, Trapp-Haser formula. ... (05 Mar 2000) ...

Hashimoto
Japanese surgeon, 1881-1934. ... See: Hashimoto's disease, Hashimoto's struma, Hashimoto's thyroiditis. ... (05 Mar 2000) ...

Hashimoto's disease
Synonym for Hashimoto's thyroiditis ... <endocrinology> Inflammation of the thyroid gland without the formation of pus. Noninfectious nonbacterial thyroid inflammation. ... (27 Sep 1997) ...

Hashimoto's struma
Synonym for Hashimoto's thyroiditis ... <endocrinology> Inflammation of the thyroid gland without the formation of pus. Noninfectious nonbacterial thyroid inflammation. ... (27 Sep 1997) ...

Hashimoto's thyroiditis
<endocrinology> Inflammation of the thyroid gland without the formation of pus. Noninfectious nonbacterial thyroid inflammation. ... (27 Sep 1997) ...

hashish
A slightly acrid gum resin produced by the common hemp (Cannabis saltiva), of the variety Indica, when cultivated in a warm climate; also, the tops of the plant, from which the resinous product is obtained. It is narcotic, and has long been used in the East for its intoxicating effect. ... See: bhang, ganja. ... Origin: Ar. Hashish. ... (06 Mar 1998)< …

Hasner
Joseph Ritter von, Czechoslovakian ophthalmologist, 1819-1892. ... See: Hasner's fold, Hasner's valve. ... (05 Mar 2000) ...

Hasner's fold
Synonym for lacrimal fold ... A fold of mucous membrane guarding the lower opening of the nasolacrimal duct. ... Synonym: plica lacrimalis, Bianchi's valve, Hasner's fold, Hasner's valve, Huschke's valve, Rosenmuller's valve. ... (05 Mar 2000) ...

Hasner's valve
Synonym for lacrimal fold ... A fold of mucous membrane guarding the lower opening of the nasolacrimal duct. ... Synonym: plica lacrimalis, Bianchi's valve, Hasner's fold, Hasner's valve, Huschke's valve, Rosenmuller's valve. ... (05 Mar 2000) ...

Hassall
Arthur, British physician, 1817-1894. ... See: Hassall's bodies, Hassall's concentric corpuscle, Hassall-Henle bodies, Virchow-Hassall bodies. ... (05 Mar 2000) ...

Hassall-Henle bodies
Hyaline body's on the posterior surface of Descemet's membrane at the periphery of the cornea. ... Synonym: Henle's warts. ... (05 Mar 2000) ...

Hassall's bodies
Synonym for thymic corpuscle ... Small spherical bodies of keratinised and usually squamous epithelial cells arranged in a concentric pattern around clusters of degenerating lymphocytes, eosinophils, and macrophages; found in the medulla of the lobules of the thymus. ... Synonym: Hassall's bodies, Hassall's concentric corpuscle, Virchow-Hassall bodie …