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

Maximow's stain
<technique> For bone marrow, an alum-haematoxylin and azure II-eosin stain used to distinguish granulated leukocytes, mast cells, and cartilage. ... (05 Mar 2000) ...

maximum
1. The greatest possible or actual effect or quantity. ... 2. The acme of a disease or process. ... (18 Nov 1997) ...

maximum breathing capacity
Synonym for maximum voluntary ventilation ... The volume of air breathed when an individual breathes as deeply and as quickly as possible for a given time (e.g., 15 sec.). ... Synonym: maximum breathing capacity. ... (05 Mar 2000) ...

maximum occipital point
The point on the squama of the occipital bone farthest from the glabella. ... (05 Mar 2000) ...

maximum permissible dose
<radiobiology> Defined by the International Commission on Radiological Protection as the greatest dose of radiation which, in the light of present knowledge, is not expected to cause detectable bodily injury to a person at any time during his lifetime. ... This dose has been reduced with each Commission report. The MPD is given in terms of acu …

maximum permissible exposure level
The highest level of exposure to a substance, usually noxious, in the environment or during diagnostic and therapeutic procedures, that a body can tolerate without injury. ... (12 Dec 1998) ...

maximum temperature
In bacteriology, denoting a temperature above which growth will not take place. ... (05 Mar 2000) ...

maximum urea clearance
The urea clearance when the urine flow exceeds 2 ml/min; normal value is about 75 ml blood/min per 1.73 m2 body surface area. ... (05 Mar 2000) ...

maximum velocity
The maximum rate of an enzyme-catalyzed reaction that can be achieved by progressively increasing the substrate concentration at a given enzyme concentration; in cases of substrate inhibition, Vmax is an extrapolated value in the absence of such inhibition; Cf.: Michaelis-Menten equation. ... The maximum initial rate of shortening of a myocardial fi …

maximum voluntary ventilation
The volume of air breathed when an individual breathes as deeply and as quickly as possible for a given time (e.g., 15 sec.). ... Synonym: maximum breathing capacity. ... (05 Mar 2000) ...

May apple
Synonym for podophyllum ... <botany> The dried seeds and root of the mayapple (Podophyllum peltatum) from which several medicinally-useful compounds can be extracted. ... (09 Oct 1997) ...

May apple root
Synonym for podophyllum resin ... <botany> A powdered mixture of resins taken from dried seeds and root of the mayapple (Podophyllum peltatum), it is typically used as a topical caustic agent. ... (09 Oct 1997) ...

May-Grunwald stain
<technique> A German equivalent of Jenner's stain, used for blood staining and in cytology; often used in combination with Giemsa stain; valuable in demonstrating parasitic flagellates. ... (05 Mar 2000) ...

May-Hegglin anomaly
Synonym for Hegglin's anomaly ... A disorder in which neutrophils and eosinophils contain basophilic structures known as Dohle or Amato bodies and in which there is faulty maturation of platelets, with thrombocytopenia; autosomal dominant inheritance. ... Synonym: May-Hegglin anomaly. ... (05 Mar 2000) ...

May-White syndrome
<syndrome> Progressive myoclonus epilepsy with lipomas, deafness, and ataxia; probably a familial form of mitochondrial encephalomyopathy. ... (05 Mar 2000) ...

Mayaro virus
A virus of the genus Alphavirus, family Togaviridae, causing epidemics of undifferentiated type fever in South America. ... (05 Mar 2000) ...

maybe
Perhaps; possibly; peradventure. 'Maybe the amorous count solicits her.' (Shak) 'In a liberal and, maybe, somewhat reckless way.' (Tylor) ... Origin: For it may be. ... Possible; probable, but not sure. 'Then add those maybe years thou hast to live.' (Driden) ... Possibility; uncertainty. 'What they offer is mere maybe and shift.' (Creech) ... Source: …

Mayer, Karl
<person> Austrian neurologist, 1862-1932. ... See: Mayer's reflex. ... (05 Mar 2000) ...

Mayer, Karl W
<person> German gynecologist, 1795-1868. ... See: Mayer's pessary. ... (05 Mar 2000) ...

Mayer, Paul
<person> German histologist, 1848-1923. ... See: Mayer's haemalum stain, Mayer's mucicarmine stain, Mayer's mucihematein stain. ... (05 Mar 2000) ...

Mayer's haemalum stain
<technique> A progressive nuclear stain also used as a counterstain. ... (05 Mar 2000) ...

Mayer's mucicarmine stain
Synonym for mucicarmine ... A red stain containing aluminum chloride and carmine; used to detect epithelial mucins and mucin-secreting adenocarcinomas; also used to demonstrate the capsule of Cryptococcus neoformans and other fungi. ... (05 Mar 2000) ...

Mayer's mucihematein stain
Synonym for mucihematein ... A violet-blue staining fluid containing aluminum chloride and haematein; used to detect connective tissue mucins. ... (05 Mar 2000) ...

Mayer's pessary
Synonym for Dumontpallier's pessary ... An elastic ring pessary. ... Synonym: Mayer's pessary. ... (05 Mar 2000) ...

Mayer's reflex
Synonym for basal joint reflex ... Opposition and adduction of the thumb with flexion at its metacarpophalangeal joint and extension at its interphalangeal joint, when firm passive flexion of the third, fourth, or fifth finger is made; the reflex is present normally but is absent in pyramidal lesions. ... Synonym: finger-thumb reflex, Mayer's reflex. …

mayidism
Synonym: pellagra. ... Origin: Zea mays, maise ... (05 Mar 2000) ...

Mayo bunionectomy
<procedure> Excision of the head of the first metatarsal. ... (05 Mar 2000) ...

Mayo-Robson, Sir Arthur
<person> British surgeon, 1853-1933. ... See: Mayo-Robson's point, Mayo-Robson's position. ... (05 Mar 2000) ...

Mayo-Robson's point
A point just above and to the right of the umbilicus, where tenderness on pressure exists in disease of the pancreas. ... (05 Mar 2000) ...

Mayo-Robson's position
A supine position with a thick pad under the loins, causing a marked lordosis in this region; used in operations on the gallbladder. ... (05 Mar 2000) ...

Mayo, Charles
<person> U.S. Surgeon, 1865-1939. ... See: Mayo bunionectomy. ... (05 Mar 2000) ...

Mayo, William
<person> U.S. Surgeon, 1861-1939. ... See: Mayo's operation, Mayo's vein. ... (05 Mar 2000) ...

Mayo's operation
An operation for the radical cure of umbilical hernia; the neck of the sac is exposed by two elliptical incisions, the gut is returned to the abdomen, the sac and adherent omentum are cut away, and the fascial edges of the opening are overlapped with mattress sutures. ... (05 Mar 2000) ...

Mayo's vein
Synonym for prepyloric vein ... <anatomy, vein> A tributary of the right gastric vein that passes anterior to the pylorus at its junction with the duodenum. ... Synonym: vena prepylorica, Latarget's vein, Mayo's vein. ... (05 Mar 2000) ...

Mayou, Marmaduke Stephen
<person> British ophthalmologist, 1876-1934. ... See: Batten-Mayou disease. ... (05 Mar 2000) ...

maytansine
<chemical> An ansa macrolide isolated from the east african shrubs maytenus serrata and m. Buchananii. It has antineoplastic activity, probably due to its inhibition of DNA synthesis. ... Pharmacological action: antineoplastic agent, phytogenic, nucleic acid synthesis inhibitors. ... Chemical name: Maytansine ... (12 Dec 1998) ...

mazamorra
Name given in Puerto Rico to a dermatitis caused by penetration of the skin by hookworm larvae. ... (05 Mar 2000) ...

maze
A labyrinth; frequently used to study higher functions of the nervous system in rats. ... Origin: M.E. Masen, to confuse ... (05 Mar 2000) ...

maze learning
Learning the correct route through a maze to obtain reinforcement. It is used for human or animal populations. ... (12 Dec 1998) ...

mazindol
<chemical> Tricyclic anorexigenic agent unrelated to and less toxic than amphetamine, but with some similar side effects. It inhibits uptake of catecholamines and blocks the binding of cocaine to the dopamine uptake transporter. ... Pharmacological action: appetite depressants, dopamine uptake inhibitors, adrenergic uptake inhibitors, central …

mazo-
The breast. ... See: masto-. ... Origin: G. Mazos ... (05 Mar 2000) ...

mazodynia
Synonym: mastodynia. ... Origin: mazo-+ G. Odyne, pain ... (05 Mar 2000) ...

mazolysis
Detachment of the placenta. ... Origin: G. Maza, placenta, + lysis, a loosening ... (05 Mar 2000) ...

mazopathy
Mazopathia ... 1. Any disease of the placenta. ... Origin: G. Maza, a barley cake (placenta), + pathos, suffering ... Synonym: mastopathy. ... Origin: G. Mazos, breast ... (05 Mar 2000) ...

mazopexy
An obsolete term for mastopexy. ... Origin: mazo-+ G. Pexis, fixation ... (05 Mar 2000) ...

mazoplasia
Old term for mastoplasia. ... Origin: mazo-+ G. Plasia, a moulding ... (05 Mar 2000) ...

Mazzoni corpuscle
A tactile corpuscle apparently identical with Krause's end bulb. ... See: Golgi-Mazzoni corpuscle. ... (05 Mar 2000) ...

Mazzoni, Vittorio
<person> Italian physician, 1880-1940. ... See: Mazzoni corpuscle, Golgi-Mazzoni corpuscle. ... (05 Mar 2000) ...

Mazzotti reaction
Synonym for Mazzotti test ... A test for onchocerciasis using an oral test dose of diethylcarbamazine (50 or 100 mg), resulting in the appearance of an acute rash in 2 to 24 hours from death of microfilariae in the skin. ... Synonym: Mazzotti reaction. ... (05 Mar 2000) ...

Mazzotti test
A test for onchocerciasis using an oral test dose of diethylcarbamazine (50 or 100 mg), resulting in the appearance of an acute rash in 2 to 24 hours from death of microfilariae in the skin. ... Synonym: Mazzotti reaction. ... (05 Mar 2000) ...

Mazzotti, Luigi
<person> Mexican physician specializing in tropical medicine in mid-20th century. ... See: Mazzotti reaction, Mazzotti test. ... (05 Mar 2000) ...

mb
See megabase. ... (05 Mar 2000) ...

MBC
<abbreviation> Maximum breathing capacity. ... (05 Mar 2000) ...

MBF
One thousand board feet of lumber. ... (05 Dec 1998) ...

MBP-associated serine protease
<enzyme> Genbank d28593 ... Registry number: EC 3.4.21.- ... Synonym: masp protease, mannose-binding protein-associated serine protease ... (26 Jun 1999) ...

MC
See Moisture content. ... (05 Dec 1998) ...

McArdle disease
<disease> Glycogen storage disease in which the defective enzyme is muscle phosphorylase. ... (18 Nov 1997) ...

McArdle-Schmid-Pearson disease
Synonym for type 5 glycogenosis ... Glycogenosis due to muscle glycogen phosphorylase deficiency, resulting in accumulation of glycogen of normal chemical structure in muscle. ... Synonym: McArdle's disease, McArdle's syndrome, McArdle-Schmid-Pearson disease, myophosphorylase deficiency glycogenosis. ... (05 Mar 2000) ...

McArdle, Brian
<person> 20th century British neurologist. ... See: McArdle's disease, McArdle-Schmid-Pearson disease, McArdle's syndrome. ... (05 Mar 2000) ...

McArdle's disease
Synonym for type 5 glycogenosis ... Glycogenosis due to muscle glycogen phosphorylase deficiency, resulting in accumulation of glycogen of normal chemical structure in muscle. ... Synonym: McArdle's disease, McArdle's syndrome, McArdle-Schmid-Pearson disease, myophosphorylase deficiency glycogenosis. ... (05 Mar 2000) ...

McArdle's syndrome
Synonym for type 5 glycogenosis ... Glycogenosis due to muscle glycogen phosphorylase deficiency, resulting in accumulation of glycogen of normal chemical structure in muscle. ... Synonym: McArdle's disease, McArdle's syndrome, McArdle-Schmid-Pearson disease, myophosphorylase deficiency glycogenosis. ... (05 Mar 2000) ...

McBurney, Charles
<person> U.S. Surgeon, 1845-1913. ... See: McBurney's incision, McBurney's point, McBurney's sign. ... (05 Mar 2000) ...

McBurney's incision
An incision parallel with the course of the external oblique muscle, one or two inches cephalad to the anterior superior spine of the ilium. ... (05 Mar 2000) ...

mcburney's point
In acute appendicitis, extreme sensitivity over the appendix in a location that is approximately two inches to the left of the right anterior superior iliac spine. ... (27 Sep 1997) ...

McBurney's sign
<clinical sign> Tenderness at site two-thirds of the distance between the umbilicus and the anterior-superior iliac spine; seen in appendicitis. ... (05 Mar 2000) ...

McCarthy, Daniel
<person> U.S. Neurologist, 1874-1958. ... See: McCarthy's reflexes. ... (05 Mar 2000) ...

McCarthy's reflexes
Synonym for spino-adductor reflex ... Contraction of the adductors of the thigh upon tapping the spinal column. ... Synonym: McCarthy's reflexes. ... (05 Mar 2000) ...

McCrea sound
A gently curved sound used to dilate the urethra in infants or children. ... (05 Mar 2000) ...

McCrea, Lowrain
<person> U.S. Urologist, *1896. ... See: McCrea sound. ... (05 Mar 2000) ...

McCune-Albright syndrome
<syndrome> The abnormal development of multiple bones, hormonal disorder and brownish skin lesions. ... (27 Sep 1997) ...

McCune, Donovan James
<person> U.S. Paediatrician, 1902-1976. ... See: McCune-Albright syndrome. ... (05 Mar 2000) ...

MCDB
See Moisture content, dry basis. ... (05 Dec 1998) ...

McDonald, Ellice
<person> U.S. Gynecologist, 1876-1955. ... See: McDonald's manoeuvre. ... (05 Mar 2000) ...

McDonald's manoeuvre
Measurement of uterus from the upper border of the symphysis to a line tangential to the fundus over the abdomen with a tape to determine the height of the uterus; each centimeter approximately corresponds to the gestational age in weeks. ... (05 Mar 2000) ...

mcg
A microgram, one-millionth of a gram. ... (27 Sep 1997) ...

mcg-dl
<abbreviation> For micrograms per decilitre. ... (12 Jan 1998) ...

McGoon, Dwight
<person> U.S. Surgeon, *1925. ... See: McGoon's technique. ... (05 Mar 2000) ...

McGoon's technique
Plastic reconstruction of an incompetent mitral valve, when the incompetence is due to rupture of chordae to the posterior leaflet, by plication of the redundant leaflet. ... (05 Mar 2000) ...

mcgregor's line
<radiology> Line from posterior hard palate to base of occiput, if dens is greater than 4.5 mm most likely to be basilar invagination, easier to use than Chamberlain's line ... (12 Dec 1998) ...

MCh
<abbreviation> Magister Chirurgiae, Master of Surgery. ... (05 Mar 2000) ...

Mch4 protease
<enzyme> An aspartate-specific cysteine protease containing two fadd-like domains. ... Registry number: EC 3.4.22.- ... (26 Jun 1999) ...

MCHC
<abbreviation> Mean corpuscular haemoglobin concentration. ... (05 Mar 2000) ...

mCi
<abbreviation> Millicurie. ... (05 Mar 2000) ...

McIndoe operation
Operation for the development of a neovagina using a split thickness skin graft over a vaginal mold. ... (05 Mar 2000) ...

MCK1 protein kinase
<enzyme> From saccharomyces cerevisiae; involved in transcriptional activation of ime1, stimulation of spore maturation, and facilitation of centromere activity during mitosis; member of the glycogen synthase kinase 3 family; amino acid sequence given in first source ... Registry number: EC 2.7.1.- ... Synonym: meiosis and centromere regulatory …

McKee, George Kenneth
<person> British orthopedic surgeon, *1930. ... See: McKee's line. ... (05 Mar 2000) ...

McKee's line
A line drawn from the tip of the cartilage of the eleventh rib to a point 3.5 cm medial to the anterior superior spine, then curved downward, forward, and inward to just above the deep inguinal ring; a guide to the common iliac artery. ... (05 Mar 2000) ...

McLean, Malcolm
<person> U.S. Obstetrician, 1848-1924. ... See: Tucker-McLean forceps. ... (05 Mar 2000) ...

MCMI
<abbreviation> Millon clinical multiaxial inventory. ... (05 Mar 2000) ...

McMurray test
Rotation of the tibia on the femur to determine injury to meniscal structures. ... (05 Mar 2000) ...

McMurray, Thomas
<person> British surgeon, *1889. ... See: McMurray test. ... (05 Mar 2000) ...

mcn-a-343
<chemical> A drug that selectively activates certain subclasses of muscarinic receptors and also activates postganglionic nicotinic receptors. It is commonly used experimentally to distinguish muscarinic receptor subtypes. ... Pharmacological action: ganglionic stimulants, muscarinic agonist, nicotinic agonists. ... Chemical name: 2-Butyn-1-ami …

McNemar's test
A form of chi-square test for matched paired data. ... (05 Mar 2000) ...

MCP-1
<abbreviation> Monocyte chemoattractant protein-1. ... (05 Mar 2000) ...

mcpa
<chemical> 4-chloro-2-methylphenoxyacetic acid. A powerful herbicide used as a selective weed killer. ... Pharmacological action: herbicides. ... Chemical name: Acetic acid, (4-chloro-2-methylphenoxy)- ... (12 Dec 1998) ...

McPhail test
A test for progesterone and like substances; immature female rabbits are treated with 150 IU of estrone over a period of 6 days; the test material is then given in five daily subcutaneous doses; progestational proliferation of the endometrium is noted and the results estimated according to a scale from 0 to ++++; the amount required to produce an a …

McPhail, M
<person> Canadian physiologist, *1907. ... See: McPhail test. ... (05 Mar 2000) ...

MCPs
Methyl accepting chemotaxis proteins. Proteins of the inner cytoplasmic face of the bacterial plasma membane with which the receptors of the outer face interact. Four different MCPs are known in E. Coli, each with a separate set of receptors. Can be methylated at various sites, methylation is part of the adaptation to the signal. Although important …

MCR
<abbreviation> Steroid metabolic clearance rate. ... (05 Mar 2000) ...

McRoberts manoeuvre
Manoeuvre to reduce a foetal shoulder dystocia by flexion of the maternal hips. ... (05 Mar 2000) ...