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

meralgia
Pain in the thigh; specifically, meralgia paresthetica. ... Origin: G. Meros, thigh, + algos, pain ... (21 Sep 2000) ...

Meralgia paraesthetica
<symptom> A tingling, formication, itching, and other forms of paresthesia in the outer side of the lower part of the thigh in the area of distribution of the lateral femoral cutaneous nerve; there may be pain, but the skin is usually hypesthetic to the touch. ... Synonym: Bernhardt's disease, Bernhardt-Roth syndrome, Roth's disease, Roth-Bern …

meralluride
N-[[2-Methoxy-3-[(1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxopurin-7-yl) mercuri]propyl]carbamoyl]succinamic acid;a mercurial diuretic. ... (05 Mar 2000) ...

merbromin
<chemical> A popular topical antiseptic with weak antibacterial action. It is incompatible with local anaesthetics. ... Pharmacological action: anti-infective agents, local. ... Chemical name: Mercury, (2',7'-dibromo-3',6'-dihydroxy-3-oxospiro(isobenzofuran-1(3H),9'-(9H)xanthen)-4'-yl)hydroxy-, disodium salt ... (12 Dec 1998) ...

mercaptan
<chemistry> Any one of series of compounds, hydrosulphides of alcohol radicals, in composition resembling the alcohols, but containing sulphur in place of oxygen, and hence called also the sulphur alcohols. In general, they are colourless liquids having a strong, repulsive, garlic odour. The name is specifically applied to ethyl mercaptan, C2 …

mercapto-
<prefix> Prefix indicating the presence of a thiol group, -SH. ... (05 Mar 2000) ...

mercaptoacetic acid
Synonym for thioglycolic acid ... HSCH2COOH;used as a reagent for the detection of metals such as iron, molybdenum, silver, and tin; the ammonium and sodium salts are used in home permanents, the calcium salt as a depilatory. ... Synonym: mercaptoacetic acid. ... (05 Mar 2000) ...

mercaptoethanol
<chemical> A water soluble thiol, not of biological origin. Used in biochemistry to cleave disulphide bonds in proteins or to protect sulphydryl groups from oxidation. ... (18 Nov 1997) ...

mercaptol
A substance derived from a ketone by the replacement of the bivalent oxygen by two thioalkyl (-SR) groups. ... (05 Mar 2000) ...

mercaptomerin sodium
N-(gamma-Carboxymethylmercaptomercuri-beta-methoxy)propylcamphoramic acid disodium salt;a mercurial diuretic. ... (05 Mar 2000) ...

mercaptopropionylglycine
<chemical> Sulfhydryl acylated derivative of glycine used in treatment of liver diseases, as a detoxicant and in therapy of myopia. ... Chemical name: Glycine, N-(2-mercapto-1-oxopropyl)- ... (12 Dec 1998) ...

mercapturic acid
A condensation product of l-cysteine with aromatic compounds, such as bromobenzene; formed biologically via glutathione in the liver and excreted in the urine; an S-substituted N-acetylated l-cysteine. ... Compare: mercapturic acid pathway. ... (05 Mar 2000) ...

mercapturic acid pathway
A glutathione-dependent pathway for the detoxification of a number of compounds, including arene oxides; an S-substituted glutathione is formed and ultimately converted to a mercapturic acid (an S-substituted N-acetylated l-cysteine), which is excreted; the leukotrienes are believed to be degraded through this pathway. ... (05 Mar 2000) ...

mercenary
1. Acting for reward; serving for pay; paid; hired; hireling; venal; as, mercenary soldiers. ... 2. Hence: Moved by considerations of pay or profit; greedy of gain; sordid; selfish. 'For God forbid I should my papers blot With mercenary lines, with servile pen.' (Daniel) ... Synonym: See Venal. ... Origin: OE. Mercenarie, F. Mercenaire, fr. L. Mercena …

merchantable
Logs from which at least of the volume can be converted into sound grades of lumber ('standard and better' framing lumber). ... (05 Dec 1998) ...

Mercier
Louis A., French urologist, 1811-1882. ... See: Mercier's bar, Mercier's sound, Mercier's valve, median bar of Mercier. ... (05 Mar 2000) ...

Mercier's bar
Synonym for interureteric fold ... A fold of mucous membrane extending from the orifice of the ureter of one side to that of the other side. ... Synonym: plica interureterica, bar of bladder, Mercier's bar, plica ureterica, torus uretericus, ureteric fold. ... (05 Mar 2000) ...

Mercier's sound
A catheter the beak of which is short and bent almost at a right angle. ... (05 Mar 2000) ...

Mercier's valve
An occasional fold of mucosa of the bladder partially occluding the ureteral orifice. ... (05 Mar 2000) ...

mercocresols
A mixture consisting of equal parts by weight of sec-amyltricresol and o-hydroxyphenylmercuric chloride; it possesses fungicidal, germicidal, and bacteriostatic action. ... (05 Mar 2000) ...

mercumatilin
8-(2'-Methoxy-3'-hydroxymercuripropyl) coumarin-3-carboxylic acid (mercumallylic acid) and theophylline;a mercurial diuretic; also available as mercumatilin sodium. ... (05 Mar 2000) ...

mercuramide
Synonym for mersalyl ... <chemical> (3-((2-(carboxylatomethoxy)benzoyl)amino)-2-methoxypropyl)hydroxymercurate(1-) sodium. A toxic thiol mercury salt formerly used as a diuretic. It inhibits various biochemical functions, especially in mitochondria, and is used to study those functions. ... Pharmacological action: diuretics, mercurial, enzyme i …

mercurial
1. Having the qualities fabled to belong to the god Mercury; swift; active; sprightly; fickle; volatile; changeable; as, a mercurial youth; a mercurial temperament. 'A mercurial man who fluttered over all things like a fan.' (Byron) ... 2. Having the form or image of Mercury; applied to ancient guideposts. ... 3. Of or pertaining to Mercury as the go …

mercurial diuretics
Diuretic drugs containing organic mercury (e.g., Mercuhydrin) which promote substantial salt and water loss through the kidney. Among the first potent diuretic agents used in congestive heart failure, but now obsolescent. ... (05 Mar 2000) ...

mercurial line
A bluish brown pigmentation seen at the gingival margin and associated with mercury poisoning (mercurial stomatitis). ... (05 Mar 2000) ...

mercurial stomatitis
Alterations of the oral mucosa arising from chronic mercury poisoning; may consist of mucosal erythema and oedema, ulceration, and deposition of mercurial sulfide in inflamed tissues, resulting in oral pigmentation resembling that of lead stomatitis. ... (05 Mar 2000) ...

mercurial tremor
A tremor caused by chronic mercury poisoning. ... (05 Mar 2000) ...

mercurialentis
A brown discoloration of the anterior capsule of the lens caused by mercury; early sign of mercurial poisoning. ... (05 Mar 2000) ...

mercurialism
Synonym for mercury poisoning ... A disease usually caused by the ingestion of mercury or mercury compounds, which are toxic in relation to their ability to produce mercuric ions; usually acute mercury poisoning is associated with ulcerations of the stomach and intestine and toxic changes in the renal tubules; anuria and anaemia may occur; usually c …

mercuribenzoates
<chemical> Mercury containing benzoic acid derivatives. Some of these are commonly used as sulphydryl reagents. Mercuric benzoate was formerly used as an antisypilitic. ... Pharmacological action: enzyme inhibitors, sulfhydryl reagents. ... (12 Dec 1998) ...

mercuric chloride
<chemical> Mercury chloride (hgcl2). A highly toxic compound that volatises slightly at ordinary temperature and appreciably at 100 degrees c. It is corrosive to mucous membranes and used as a topical antiseptic and disinfectant. ... Pharmacological action: anti-infective agents, local, disinfectants. ... Chemical name: Mercury chloride (HgCl2) …

mercuric iodide
Red ... HgI2;has been used as an antiseptic and as a disinfectant for inanimate objects. ... Synonym: mercury biniodide, mercury deutoiodide. ... (05 Mar 2000) ...

mercuric oleate
An ointment-like preparation used in parasitic skin diseases. ... (05 Mar 2000) ...

mercuric oxide
The red precipitate of HgO; it has been used externally as an antiseptic in chronic skin diseases and fungus infections. ... The yellow precipitate of HgO; used externally as an antiseptic in the treatment of inflammatory conditions of the eyelids and the conjunctivae. ... (05 Mar 2000) ...

mercuric reductase
<enzyme> Reduces hg2+ to volatile hg, contains fad, requires NADPH ... Registry number: EC 1.16.- ... (26 Jun 1999) ...

mercuric salicylate
A powder used externally in the treatment of parasitic and fungus skin diseases. ... Synonym: mercury subsalicylate. ... (05 Mar 2000) ...

mercurochrome
Synonym for merbromin ... <chemical> A popular topical antiseptic with weak antibacterial action. It is incompatible with local anaesthetics. ... Pharmacological action: anti-infective agents, local. ... Chemical name: Mercury, (2',7'-dibromo-3',6'-dihydroxy-3-oxospiro(isobenzofuran-1(3H),9'-(9H)xanthen)-4'-yl)hydroxy-, disodium salt ... (12 Dec …

mercurophen
Sodium hydroxymercury-o-nitrophenolate;a local antiseptic. ... (05 Mar 2000) ...

mercurophylline sodium
The sodium salt of beta-methoxy-gamma-hydroxymercuripropylamide of trimethylcyclopentanedicarboxylic acid, and theophylline; a mercurial diuretic. ... (05 Mar 2000) ...

mercurous chloride
Synonym for calomel ... HgCl;mild mercury chloride; mercury monochloride, protochloride, or subchloride; has been used as an intestinal antiseptic and laxative; replaced by safer agents. ... Synonym: mercurous chloride, sweet precipitate. ... Origin: Mediev. L., fr. G. Kalos, beutiful, + melas, black ... (05 Mar 2000) ...

mercurous iodide
HgI;used externally as an ointment in eye diseases. ... Synonym: mercury protoiodide, yellow mercury iodide. ... (05 Mar 2000) ...

mercury
1. <astronomy> The first planet in order from the sun. It has no known natural satellites. It is one of the four inner or terrestrial planets of the solar system. It is the planet nearest the sun, from which its mean distance is about 36,000,000 miles. Its period is 88 days, and its diameter 3,000 miles. ... 2. <chemistry> A metallic ele …

mercury arc
An electric discharge through mercury vapor between electrodes, one of which is usually mercury; provides a rich source of therapeutic ultraviolet rays; the containing tube is usually quartz; may also be glass with a fluorite window. ... (05 Mar 2000) ...

mercury bichloride
Synonym for mercuric chloride ... <chemical> Mercury chloride (hgcl2). A highly toxic compound that volatises slightly at ordinary temperature and appreciably at 100 degrees c. It is corrosive to mucous membranes and used as a topical antiseptic and disinfectant. ... Pharmacological action: anti-infective agents, local, disinfectants. ... Chemic …

mercury biniodide
mercuric iodide, red ...

mercury compounds
Inorganic compounds that contain mercury as an integral part of the molecule. ... (12 Dec 1998) ...

mercury deutoiodide
mercuric iodide, red ...

mercury isotopes
Stable mercury atoms that have the same atomic number as the element mercury, but differ in atomic weight. Hg-196, 198-201, and 204 are stable mercury isotopes. ... (12 Dec 1998) ...

mercury poisoning
A disease usually caused by the ingestion of mercury or mercury compounds, which are toxic in relation to their ability to produce mercuric ions; usually acute mercury poisoning is associated with ulcerations of the stomach and intestine and toxic changes in the renal tubules; anuria and anaemia may occur; usually chronic mercury poisoning is a res …

mercury protoiodide
Synonym for mercurous iodide ... HgI;used externally as an ointment in eye diseases. ... Synonym: mercury protoiodide, yellow mercury iodide. ... (05 Mar 2000) ...

mercury radioisotopes
Unstable isotopes of mercury that decay or disintegrate emitting radiation. Hg atoms with atomic weights 185-195, 197, 203, 205, and 206 are radioactive mercury isotopes. ... (12 Dec 1998) ...

mercury subsalicylate
Synonym for mercuric salicylate ... A powder used externally in the treatment of parasitic and fungus skin diseases. ... Synonym: mercury subsalicylate. ... (05 Mar 2000) ...

mercury vapor lamp
A lamp in which the electric arc is in an ionised mercury vapor atmosphere; it produces ultraviolet light that can be used therapeutically or in diagnostic photometry. ... (05 Mar 2000) ...

mercy
Origin: OE. Merci, F. Merci, L. Merces, mercedis, hire, pay, reward, LL, equiv. To misericordia pity, mercy. L. Merces is prob akin to merere to deserve, acquire. See Merit, and cf. Amerce. ... 1. Forbearance to inflict harm under circumstances of provocation, when one has the power to inflict it; compassionate treatment of an offender or adversary; …

mere-
Mero- ... Part; also indicating one of a series of similar parts. ... See: -mer. ... Origin: G. Meros, share ... (05 Mar 2000) ...

Merendino, K Alvin
<person> U.S. Surgeon, *1914. ... See: Merendino's technique. ... (05 Mar 2000) ...

Merendino's technique
Plastic reconstruction of an incompetent mitral valve using heavy silk sutures to narrow the annulus in the region of the medial commissure. ... (05 Mar 2000) ...

mereprine
Synonym for doxylamine succinate ... 2-[alpha-(2-dimethylaminoethoxy)-alpha-methylbenzyl]pyridine succinate;an antihistaminic. ... Synonym: mereprine. ... (05 Mar 2000) ...

merethoxylline procaine
Dehydro-2-[N-(3'-hydroxymercuri-2'-methoxyethoxy)propylcarbamoyl]phenoxyacetic acid (merethoxylline), 2-diethylaminoethyl p-aminobenzoate (procaine), and theophylline; a mixture of the procaine salt of merethoxylline and anhydrous theophylline; used as a mercurial diuretic. ... (05 Mar 2000) ...

merganser
<zoology> Any bird of the genus Merganser, and allied genera. They are allied to the ducks, but have a sharply serrated bill. ... The red-breasted merganser (Merganser serrator) inhabits both hemispheres. It is called also sawbill, harle, and sheldrake. The American merganser (M. Americanus) and the hooded merganser (Lophodytes cucullatus) are …

mericarp
<plant biology> One segment of a fruit that breaks at maturity into units derived from the individual carpels. ... Compare: schizocarp. ... (09 Oct 1997) ...

meridian
1. Midday; noon. ... 2. Hence: The highest point, as of success, prosperity, or the like; culmination. 'I have touched the highest point of all my greatness, And from that full meridian of my glory I haste now to my setting.' (Shak) ... 3. <astronomy> A great circle of the sphere passing through the poles of the heavens and the zenith of a give …

meridian of cornea
Any line bisecting the cornea through its apex. ... (05 Mar 2000) ...

meridiani
Plural of meridianus. ... (05 Mar 2000) ...

meridiani bulbi oculi
Synonym for meridians of eye ... Lines surrounding the surface of the eyeball passing through both anterior and posterior poles. ... Synonym: meridiani bulbi oculi. ... (05 Mar 2000) ...

meridians
Classical loci in acupuncture. They are main and collateral channels, regarded as a network of passages, through which vital energy circulates and along which acupoints (acupuncture points) are distributed. The meridians are a series of 14 lines upon which more than 400 acupoints are located on the body. ... (12 Dec 1998) ...

meridians of eye
Lines surrounding the surface of the eyeball passing through both anterior and posterior poles. ... Synonym: meridiani bulbi oculi. ... (05 Mar 2000) ...

meridianus
Synonym: meridian, meridian. ... Origin: L. ... (05 Mar 2000) ...

meridional
Relating to a meridian. ... (05 Mar 2000) ...

meridional cleavage
Cleavage in a plane through the axis of the zygote. ... (05 Mar 2000) ...

meridional fibres
The longitudinal fibres of the ciliary muscle. ... Synonym: fibrae meridionales. ... (05 Mar 2000) ...

merispore
A secondary spore, one resulting from the segmentation of another (compound or septate) spore. ... Origin: G. Meros, a part, + sporos, seed ... (05 Mar 2000) ...

meristem
<plant biology> Group of actively dividing plant cells, found as apical meristems at the tips of roots and shoots and as lateral meristems in vascular tissue (vascular cambium) and in cork tissue (phellogen). ... Also found in young leaves and at the bases of internodes in grasses. Consists of small nonphotosynthetic cells, with primary walls …

meristematic
Pertaining (in fungi) to an area (meristem) of the hyphae or of other specialised structures from which new growth occurs. ... Origin: G. Merisein, to divide ... (05 Mar 2000) ...

meristic
Symmetrical; that which can be divided evenly; denoting bilateral or longitudinal symmetry in the arrangement of parts in one organism. ... Origin: G. Meristikos, suitable for dividing ... (05 Mar 2000) ...

Merkel cell tumour
A rare malignant cutaneous tumour seen in sun-exposed skin of elderly patients composed of dermal nodules of small round cells with scanty cytoplasm in a trabecular pattern; the tumour cells contain cytoplasmic dense core granules resembling neurosecretory granules seen in Merkel cells. ... Synonym: primary neuroendocrine carcinoma of the skin, trab …

merkel cells
Nondendritic, nonkeratinocytic epithelial clear cells normally found in the epidermis and dermis of mammals and humans. They are believed to be of neuroendocrine origin and function as a specific slowly adapting sensory touch receptor. The merkel cell was first described by friedrich sigmund merkel, german anatomist in 1875. ... (12 Dec 1998) ...

Merkel, Friedrich
<person> German anatomist and physiologist, 1845-1919. ... See: Merkel cell tumour, Merkel's corpuscle, Merkel's tactile cell, Merkel's tactile disk. ... (05 Mar 2000) ...

Merkel, Friedrich Sigmund
<person> Was Professor of Anatomy successively at Rostock, Konigsberg and Gottingen. ... Merkel's Corpuscles - one form of sensory 'tactile' nerve ending. ... Lived: 1845-1919. B. Nuremburg, Apr 5th, 1845, d. May 28th, 1919. ... (05 Dec 1998) ...

Merkel, Karl
<person> German anatomist and laryngologist, 1812-1876. ... See: Merkel's filtrum ventriculi, Merkel's fossa, Merkel's muscle. ... (05 Mar 2000) ...

Merkel's corpuscle
Synonym for tactile meniscus ... A specialised tactile sensory nerve ending in the epidermis, characterised by a terminal cuplike expansion of an intraepidermal axon in contact with the base of a single modified keratinocyte. ... Synonym: meniscus tactus, Merkel's corpuscle, Merkel's tactile cell, Merkel's tactile disk, tactile disk. ... (05 Mar 2000) …

Merkel's filtrum ventriculi
Synonym for filtrum ventriculi ... A groove between the two prominences, in each lateral wall of the vestibule of the larynx, formed by the cuneiform and the arytenoid cartilages. ... Synonym: Merkel's filtrum ventriculi. ... (05 Mar 2000) ...

Merkel's fossa
A groove in the posterolateral wall of the vestibule of the larynx between the corniculate and cuneiform cartilages. ... (05 Mar 2000) ...

Merkel's muscle
Synonym for ceratocricoid muscle ... <anatomy> A fasciculus from the posterior cricoarytenoid muscle inserted into the inferior horn of the thyroid cartilage. ... Synonym: musculus ceratocricoideus, Merkel's muscle. ... (05 Mar 2000) ...

Merkel's tactile cell
Synonym for tactile meniscus ... A specialised tactile sensory nerve ending in the epidermis, characterised by a terminal cuplike expansion of an intraepidermal axon in contact with the base of a single modified keratinocyte. ... Synonym: meniscus tactus, Merkel's corpuscle, Merkel's tactile cell, Merkel's tactile disk, tactile disk. ... (05 Mar 2000) …

Merkel's tactile disk
Synonym for tactile meniscus ... A specialised tactile sensory nerve ending in the epidermis, characterised by a terminal cuplike expansion of an intraepidermal axon in contact with the base of a single modified keratinocyte. ... Synonym: meniscus tactus, Merkel's corpuscle, Merkel's tactile cell, Merkel's tactile disk, tactile disk. ... (05 Mar 2000) …

mermaid
A fabled marine creature, typically represented as having the upper part like that of a woman, and the lower like a fish; a sea nymph, sea woman, or woman fish. ... Chaucer uses this word as equivalent to the siren of the ancients. Mermaid fish, a European spatangoid sea urchin (Echinocardium cordatum) having some resemblance to a skull. ... <bota …

mermaid deformity
Synonym for sirenomelia ... Union of the legs with partial or complete fusion of the feet. ... See: sympus. ... Synonym: mermaid deformity, symmelia. ... Origin: L. Siren, G. Seiren, a siren ... (05 Mar 2000) ...

mermithoidea
A superfamily of nematodes of the order enoplida. Characteristics include a reduced alimentary tract and the presence of a trophosome. Its organisms can be present in the human intestine through ingestion of unwashed or contaminated raw vegetables. ... (12 Dec 1998) ...

meroacrania
Congenital lack of a part of the cranium other than the occipital bone. ... Origin: mero-+ G. A-priv. + kranion, skull ... (05 Mar 2000) ...

meroanencephaly
A type of anencephaly in which the brain and cranium are present in rudimentary form. ... Origin: mero-+ G. An-priv. + enkephalos, brain ... (05 Mar 2000) ...

meroblastic cleavage
Incomplete separation of the blastomeres, with the divisions being limited to the nonyolked portion of the egg. ... Synonym: incomplete cleavage. ... (05 Mar 2000) ...

MeroCaM
<chemical> Calcium sensitive fluorophore that can be used to measure calcium levels within live cells. ... (18 Nov 1997) ...

merocrine
<endocrinology, physiology> Commonest mode of secretion in which a secretory vesicle fuses with the plasma membrane and releases its contents to the exterior. ... (18 Nov 1997) ...

merocrine gland
A gland that releases only an acellular secretory product, in contrast to a holocrine gland. ... (05 Mar 2000) ...

merodiastolic
Partially diastolic; relating to a part of the diastole of the heart. ... Origin: mero-+ diastole ... (05 Mar 2000) ...

merogastrula
The gastrula of a meroblastic ovum. ... (05 Mar 2000) ...

merogenesis
1. Reproduction by segmentation. ... 2. Cleavage of an ovum. ... Origin: mero-+ G. Genesis, origin ... (05 Mar 2000) ...

merogenetic
Merogenic ... Relating to merogenesis. ... (05 Mar 2000) ...

merogony
1. The incomplete development of an ovum that has been disorganised. ... 2. A form of asexual schizogony, typical of sporozoan protozoa, in which the nucleus divides several times before the cytoplasm divides; the schizont divides to form merozoites in this asexual phase of the life cycle. ... Origin: mero-+ G. Gone, generation ... (05 Mar 2000) ...