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mondofacto - Online Medical Dictionary
Category: Health and Medicine > Medical Dictionary
Date & country: 26/01/2008, UK
Words: 116197
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zinc phosphate cement<chemical> A material used for cementation of inlays, crowns, bridges, and orthodontic appliances and occasionally as a temporary restoration. It is prepared by mixing zinc oxide and magnesium oxide powders with a liquid consisting principally of phosphoric acid, water, and buffers. ... Chemical name: Phosphoric acid, zinc salt (2:3) ... (12 De …
zinc phosphideZn3P2;used as a bait poison for the extermination of rats and mice. ... (05 Mar 2000) ...
zinc poisoning<disease> Symptoms of zinc poisoning include chills, fever, headache and vomiting. ... (11 May 1997) ...
zinc radioisotopesUnstable isotopes of zinc that decay or disintegrate emitting radiation. Zn atoms with atomic weights 60-63, 65, 69, 71, and 72 are radioactive zinc isotopes. ... (12 Dec 1998) ...
zinc stearateA zinc compound with variable proportions of stearic and palmitic acids; a water-repellent, protective agent used in powders and ointments in the treatment of eczema, acne, and other skin diseases. ... (05 Mar 2000) ...
zinc sulfate<chemical> A compound given in the treatment of conditions associated with zinc deficiency such as acrodermatitis enteropathica. Externally, zinc sulfate is used as an astringent in lotions and eye drops. (reynolds jef(ed): martindale: the extra pharmacopoeia (electronic version). Micromedex, inc, englewood, co, 1995) ... Pharmacological actio …
zinc sulfocarbolateSynonym for zinc phenolsulfonate ... Used as an intestinal antiseptic and locally as an astringent in chronic inflammation of the mucous membranes. ... Synonym: zinc sulfocarbolate. ... (05 Mar 2000) ...
zinc superoxideSynonym for zinc peroxide ... ZnO2;a yellowish white powder, insoluble in water and decomposed by acids; used in pharmaceutical preparations. ... Synonym: zinc superoxide. ... (05 Mar 2000) ...
zinc undecylenateZinc undecenoate, [CH2==CH(CH2)8COO]2Zn;the zinc salt of undecylenic acid; used in the treatment of fungal and other affections of the skin, including psoriasis. ... (05 Mar 2000) ...
zinc whiteSynonym for zinc oxide ... <chemical> A mild astringent and topical protectant with some antiseptic action. It is also used in bandages, pastes, ointments, dental cements, and as a sunblock. ... Pharmacological action: dermatologic agents, sunscreening agents. ... Chemical name: Zinc oxide (ZnO) ... (12 Dec 1998) ...
zinc-65A radioactive zinc isotope that decays mainly by K-capture with a half-life of 243.8 days; used as a tracer in studies of zinc metabolism. ... (05 Mar 2000) ...
zincalismSynonym for zinc poisoning ... <disease> Symptoms of zinc poisoning include chills, fever, headache and vomiting. ... (11 May 1997) ...
zinciferousContaining zinc. ... (05 Mar 2000) ...
zinco-<chemistry, prefix> A combining form from zinc; in chemistry, designating zinc as an element of certain double compounds. Also used adjectively. ... (29 Oct 1998) ...
zineb<chemical> ((1,2-ethanediylbis(carbamodithioato))(2-))zinc. An agricultural fungicide of the dithiocarbamate class. It has relatively low toxicity and there is little evidence of human injury from exposure. ... Pharmacological action: fungicides, industrial. ... Chemical name: Zinc, ((1,2-ethanediylbis(carbamodithioato))(2-))- ... (12 Dec 1998)< …
zingiberSynonym for ginger ... 1. <botany> A plant of the genus Zingiber, of the East and West Indies. The species most known is Z. Officinale. ... 2. The hot and spicy rootstock of Zingiber officinale, which is much used in cookery and in medicine. Ginger beer or ale, a mild beer impregnated with ginger. Ginger cordial, a liquor made from ginger, rais …
zingiberalesThis plant order includes 8 families, 66 genera, and about 1,800 species. These herbaceous perennials are mainly found in the wet tropics. Members include the banana family (musaceae), ginger (zingiber officinale), and cardamom (amomum and elettaria). ... (12 Dec 1998) ...
Zinn, Johann<person> German anatomist, 1727-1759. ... See: Zinn's artery, Zinn's vascular circle, Zinn's corona, Zinn's ligament, Zinn's membrane, Zinn's ring, Zinn's tendon, Zinn's zonule. ... (05 Mar 2000) ...
Zinn's arterySynonym for central artery of retina ... A branch of the ophthalmic artery which penetrates the optic nerve 1 cm behind the eye to enter the eye at the optic papilla in the retina; it divides into superior and inferior temporal and nasal branches. ... Synonym: arteria centralis retinae, arteria retinae centralis, Zinn's artery. ... (05 Mar 2000) ...
Zinn's coronaSynonym for vascular circle of optic nerve ... <anatomy, nerve> A network of branches of the short ciliary arteries on the sclera around the point of entrance of the optic nerve. ... Synonym: circulus vasculosus nervi optici, circulus arteriosus halleri, circulus zinnii, Haller's circle, Zinn's corona, Zinn's vascular circle. ... (05 Mar 2000)
Zinn's ligament
Synonym for common tendinous ring ... A fibrous ring that surrounds the optic canal and the medial part of the superior orbital fissure; it gives origin to the four rectus muscles of the eye and is partially fused with the sheath of the optic nerve. ... Synonym: annulus tendineus communis, Zinn's ligament, Zinn's ring, Zinn's tendon. ... (05 Mar 2000) …
Zinn's membrane
The anterior layer of the iris. ... (05 Mar 2000) ...
Zinn's ring
Synonym for common tendinous ring ... A fibrous ring that surrounds the optic canal and the medial part of the superior orbital fissure; it gives origin to the four rectus muscles of the eye and is partially fused with the sheath of the optic nerve. ... Synonym: annulus tendineus communis, Zinn's ligament, Zinn's ring, Zinn's tendon. ... (05 Mar 2000) …
Zinn's tendon
Synonym for common tendinous ring ... A fibrous ring that surrounds the optic canal and the medial part of the superior orbital fissure; it gives origin to the four rectus muscles of the eye and is partially fused with the sheath of the optic nerve. ... Synonym: annulus tendineus communis, Zinn's ligament, Zinn's ring, Zinn's tendon. ... (05 Mar 2000) …
Zinn's vascular circle
Synonym for vascular circle of optic nerve ... <anatomy, nerve> A network of branches of the short ciliary arteries on the sclera around the point of entrance of the optic nerve. ... Synonym: circulus vasculosus nervi optici, circulus arteriosus halleri, circulus zinnii, Haller's circle, Zinn's corona, Zinn's vascular circle. ... (05 Mar 2000)
Zinn's zonule
Synonym for ciliary zonule ... A series of delicate meridional fibres arising from the inner surface of the orbiculus ciliaris that run in bundles between, and in a very thin layer over, the ciliary processes; at the inner border of the corona, the fibres diverge into two groups that are attached to the capsule on the anterior and posterior surfaces …
zinostatin
<chemical> An antitumour isolate from the culture filtrate of the f-41 variant of streptomyces carzinostaticus. It is a protein of known amino acid sequence with a molecular weight of approximately 11,500 and possessing a regulatory function on the metabolism of DNA. In this process, that is first an inhibition of DNA biosynthesis followed by …
zinsser
See Brill-Zinsser disease (recrudescent epidemic typhus). ... (12 Dec 1998) ...
Zinsser, Hans
<person> U.S. Bacteriologist and immunologist, 1878-1940. ... See: Brill-Zinsser disease. ... (05 Mar 2000) ...
zipper
Synonym for leucine zipper ... <molecular biology> Motif found in certain DNA binding proteins. In a region of approximately 35 amino acids, every seventh is a leucine. This facilitates dimerisation of two such proteins to form a functional transcription factor. ... Examples of proteins containing leucine zippers are products of the proto-oncog …
zipper protein kinase
<enzyme> A putative serine/threonine protein kinase of 859 amino acids; has a leucine-zipper domain; has been sequenced; genbank u07358 ... Registry number: EC 2.7.10.- ... Synonym: zpk protein, leucine-zipper protein kinase ... (26 Jun 1999) ...
zippering
<cell biology> Process suggested to occur in phagocytosis in which the membrane of the phagocyte covers the particle by a progressive adhesive interaction. The evidence for such a mechanism comes from experiments in which capped B-cells are only partially internalised, whereas those with a uniform opsonising coat of antiIgG are fully engulfed …
ziram
<chemical> (t-4)-bis(dimethylcarbamodithioato-s,s')zinc. An industrial fungicide with low mammalian toxicity, although it does possess an irritant capacity for skin and mucous membranes. ... Pharmacological action: fungicides, industrial. ... Chemical name: Zinc, bis(dimethylcarbamodithioato-S,S')-, (T-4)- ... (12 Dec 1998) ...
zirco-
<chemistry, prefix> A combining form (also used adjectively) designating zirconium as an element of certain double compounds; zircono-; as in zircofluoric acid, sodium zircofluoride. ... (29 Oct 1998) ...
zircon
<chemical> A mineral occurring in tetragonal crystals, usually of a brown or gray colour. It consists of silica and zirconia. A red variety, used as a gem, is called hyacinth. Colourless, pale-yellow or smoky-brown varieties from Ceylon are called jargon. Zircon syenite, a coarse-grained syenite containing zircon crystals and often also elaeo …
zirconium granuloma
Granuloma from zirconium salts, usually occurring in the axillae, from antiperspirants containing this material; may also be caused by intradermal injection of antigens containing the lactate salt. ... (05 Mar 2000) ...
zirconium oxide
Used as a coating for the skin in dermatologic pharmaceuticals and as a pigment in paints. ... (05 Mar 2000) ...
Zivert syndrome
Synonym for Kartagener's syndrome ... <syndrome> The trio of sinusitis, bronchitis and situs inversus (lateral reversal of the position all organs in the chest and abdomen with the heart and stomach on the right, the liver on the left, etc. opposite or inverted from their usual position). ... (12 Dec 1998) ...
zm
<abbreviation> Zeptometer. ... (05 Mar 2000) ...
Zn
Symbol for zinc. ... (05 Mar 2000) ...
ZO2
Symbol for microliters of oxygen taken up per hour by 108 spermatozoa; can vary as a function of temperature. ... (05 Mar 2000) ...
zoacanthosis
A cutaneous eruption due to introduction into the human skin of hair, bristles, stingers, etc., of lower animals. ... Origin: G. Zoon, animal, + acanthosis ... (05 Mar 2000) ...
zoamylin
Former term for glycogen. ... Origin: G. Zoe, life, + amylon, starch ... (05 Mar 2000) ...
zoanthropic
Relating to or marked by zoanthropy. ... (05 Mar 2000) ...
zodiac
1. <astronomy> An imaginary belt in the heavens, 16 deg or 18 deg broad, in the middle of which is the ecliptic, or sun's path. It comprises the twelve constellations, which one constituted, and from which were named, the twelve signs of the zodiac. A figure representing the signs, symbols, and constellations of the zodiac. ... 2. A girdle; a …
zodiacal
<astronomy> Of or pertaining to the zodiac; situated within the zodiac; as, the zodiacal planets. Zodiacal light, a luminous tract of the sky, of an elongated, triangular figure, lying near the ecliptic, its base being on the horizon, and its apex at varying altitudes. It is to be seen only in the evening, after twilight, and in the morning b …
zoea
<zoology> A peculiar larval stage of certain decapod Crustacea, especially of crabs and certain Anomura. ... Alternative forms: zoaea. ... In this stage the anterior part of the body is relatively large, and usually bears three or four long spines. The years are conspicuous, and the antennae and jaws are long, fringed organs used in swimming. T …
zoetic
<cell biology> Of or pertaining to life. ... (11 May 1997) ...
zoite
Synonym: sporozoite. ... Origin: G. Zoon, animal ... (05 Mar 2000) ...
zolazepam
<chemical> 4-(2-fluorophenyl)-6,8-dihydro-1,3,8-trimethylpyrazolo(3,4-e)(1,4)diazepin-7(1h)-one. A pyrazolodiazepinone with pharmacological actions similar to anti-anxiety agents. It is commonly used in combination with tiletamine to obtain immobilization and anaesthesia in animals. ... Pharmacological action: sedatives, nonbarbiturate. ... Che …
Zollinger-Ellison syndrome
<syndrome> A tumour (gastrinoma) of the pancreatic islet cells that results in an over production of gastric acid, leading to fulminant ulceration of the oesophagus, stomach, duodenum and jejunum. ... Gastrinomas may also occur in the stomach, duodenum, spleen and regional lymph nodes. ... Treatment includes the use of H2 antagonists (for examp …
Zollinger-Ellison tumour
A non-beta cell tumour of pancreatic islets causing the Zollinger-Ellison syndrome. ... (05 Mar 2000) ...
Zollinger, Robert
<person> U.S. Surgeon, *1903. ... See: Zollinger-Ellison syndrome, Zollinger-Ellison tumour. ... (05 Mar 2000) ...
Zollner, Johann
<person> German physicist, 1834-1882. ... See: Zollner's lines. ... (05 Mar 2000) ...
Zollner's lines
Figures devised to show the possibility of optical illusions; a common one consists of two parallel line's which are met by numerous short lines obliquely placed; the parallel lines then seeming to converge or diverge. ... (05 Mar 2000) ...
zoloft
<drug> A common prescription drug used to treat depression. ... It is classed as a selective serotonin reuptake inhibitor, or SSRI, which functionally means that it increases the levels of serotonin in the body. This drug, as is the case with other SSRIs, can be dangerous if they are mixed with other drugs such as other antidepressants, illici …
zolpidem
A sedative/hypnotic drug useful for treating anxiety and resembling benzodiazepines in its pharmacology but differing somewhat in chemical structure. Unlike benzodiazepines, zolpidem lacks prominent anticonvulsant properties, and less tolerance may develop with its use. ... (05 Mar 2000) ...
zomepirac sodium
Sodium 5-(p-chlorodoenzoyl)-1,4-dimethylpyrrole-2-acet ate dihydrate;an analgesic anti-inflammatory agent, no longer marketed. ... (05 Mar 2000) ...
zona arcuata
Synonym for arcuate zone ... The inner third of the basilar membrane of the cochlear duct extending from the tympanic lip of the osseous spiral lamina to the outer pillar cell of the spiral organ (of Corti). ... Synonym: zona arcuata, zona tecta. ... (05 Mar 2000) ...
zona ciliaris
Synonym for ciliary zone ... The outer, wider zone of the anterior surface of the iris, separated from the pupillary zone by the collarette. ... Synonym: zona ciliaris. ... (05 Mar 2000) ...
zona corona
Synonym for costal fringe ... An irregularly disposed collection of visible veins seen in the skin of people usually of or past middle age; it has no specific connection with any deep structure, such as the diaphragm, and no necessary connection with underlying visceral disease. ... Synonym: zona corona. ... (05 Mar 2000) ...
zona dermatica
A ridge of thickened skin surrounding the protrusion in spina bifida. ... (05 Mar 2000) ...
zona epithelioserosa
The membranous ring, within the zona dermatica, surrounding the protrusion in spina bifida. ... (05 Mar 2000) ...
zona facialis
Herpes zoster involving the face. ... (05 Mar 2000) ...
zona fasciculata
The wide middle zone of the adrenal cortex. This zone consists of large lipid-laden cells radially arranged in parallel cords. It converts pregnenolone to cortisol by a series of enzymatically regulated steps. A small amount of corticosterone is formed as a by-product of cortisol synthesis. ... (12 Dec 1998) ...
zona glomerulosa
The narrow subcapsular outer zone of the adrenal cortex. This zone consists of granular cells which stain deeply and are arranged in rounded groups. It converts pregnenolone to aldosterone by a series of enzymatically regulated steps. ... (12 Dec 1998) ...
zona haemorrhoidalis
Synonym for haemorrhoidal zone ... The part of the anal canal that contains the rectal venous plexus. ... Synonym: annulus haemorrhoidalis, zona haemorrhoidalis. ... (05 Mar 2000) ...
zona ignea
Synonym for herpes zoster ... <virology> A reactivation of the same Herpes virus that is responsible for chicken pox. This results in a painful blistery red rash that is confined to one side of the body. ... The zoster rash affects one nerve distribution or dermatome. Facial rash can lead to optic nerve involvement with resultant blindness. ... …
zona incerta
A flat, obliquely disposed plate of gray matter in the subthalamic region situated between the thalamic fasciculus (tegmental field H1 of Forel) and the lenticular fasciculus (tegmental field H2). Medially, cells of this nucleus are adjacent to the prerubral area (tegmental field H) and, laterally, they are continuous with the reticular nucleus of …
zona medullovasculosa
The fissured segment of the spinal cord that dorsally closes the sac in meningomyelocele. ... (05 Mar 2000) ...
zona ophthalmica
Herpes zoster in the distribution of the ophthalmic nerve. ... (05 Mar 2000) ...
zona orbicularis
Fibres of the articular capsule of the hip joint encircling the neck of the femur. ... Synonym: orbicular zone, ring ligament, zonular band. ... (05 Mar 2000) ...
zona pectinata
Synonym for pectinate zone ... The outer two-thirds of the basilar membrane of the cochlear duct. ... Synonym: zona pectinata. ... (05 Mar 2000) ...
zona pellucida
<cell biology, gynaecology> A translucent, elastic, noncellular layer surrounding the ovum of many mammals. ... (11 May 1997) ...
zona perforata
Synonym for foramina nervosa ... The perforations along the tympanic lip of the spiral lamina giving passage to the cochlear nerves. ... Synonym: habenulae perforata, zona perforata. ... (05 Mar 2000) ...
zona pupillaris
Synonym for pupillary zone ... The central region of the anterior surface of the iris located between the collarette and the pupillary margin. ... Synonym: zona pupillaris. ... (05 Mar 2000) ...
zona radiata
Synonym for zona striata ... The thickened cell membrane of the ovum in forms, such as certain amphibia, in which it appears radially striated under the light microscope; with the electron microscope the striations can be seen to be microvilli. ... Synonym: membrana striata, striated membrane, zona radiata. ... (05 Mar 2000) ...
zona reticularis
The inner zone of the adrenal cortex. This zone consists of an anastomosing network of cells which resemble those of the zona fasciculata except for the fact that they contain less lipid. The mitochondria are elongated and contain a mixture of tubular and flattened cristae. ... (12 Dec 1998) ...
zona serpiginosa
Synonym for herpes zoster ... <virology> A reactivation of the same Herpes virus that is responsible for chicken pox. This results in a painful blistery red rash that is confined to one side of the body. ... The zoster rash affects one nerve distribution or dermatome. Facial rash can lead to optic nerve involvement with resultant blindness. ... …
zona striata
The thickened cell membrane of the ovum in forms, such as certain amphibia, in which it appears radially striated under the light microscope; with the electron microscope the striations can be seen to be microvilli. ... Synonym: membrana striata, striated membrane, zona radiata. ... (05 Mar 2000) ...
zona tecta
Synonym for arcuate zone ... The inner third of the basilar membrane of the cochlear duct extending from the tympanic lip of the osseous spiral lamina to the outer pillar cell of the spiral organ (of Corti). ... Synonym: zona arcuata, zona tecta. ... (05 Mar 2000) ...
zona vasculosa
Synonym for vascular zone ... An area in the external acoustic meatus where a number of minute blood vessels enter from the mastoid bone. ... Synonym: spongy spot, zona vasculosa. ... (05 Mar 2000) ...
zonal
Of or pertaining to a zone; having the form of a zone or zones. Zonal equation, a structure characterised by the arrangements of colour, inclusions, etc, of a crystal in parallel or concentric layers, which usually follow the outline of the crystal, and mark the changes that have taken place during its growth. Zonal symmetry. ... <biology> See …
zonal necrosis
Necrosis predominantly affecting or limited to an anatomical zone, especially parts of the hepatic lobules defined according to proximity to either the portal tracts or central (hepatic) veins. ... (05 Mar 2000) ...
zonary
Relating to or having the form of a zone or belt. ... (05 Mar 2000) ...
zonary placenta
Synonym for annular placenta ... A placenta in the form of a band encircling the interior of the uterus. ... Synonym: zonary placenta. ... (05 Mar 2000) ...
Zondek-Aschheim test
Synonym for Aschheim-Zondek test ... An obsolete test for pregnancy; repeated injections of small quantities of urine voided during the first months of pregnancy produce in infantile mice, within 100 hours, minute intrafollicular ovarian haemorrhages, and the development of lutein cells. ... Synonym: A.-Z. Test, Zondek-Aschheim test. ... (05 Mar 2000) …
Zondek, Bernhardt
<person> German obstetrician and gynecologist, 1891-1966. ... See: Aschheim-Zondek test. ... (05 Mar 2000) ...
zone
1. A girdle; a cincture. 'An embroidered zone surrounds her waist.' (Dryden) 'Loose were her tresses seen, her zone unbound.' (Collins) ... 2. <geography> One of the five great divisions of the earth, with respect to latitude and temperature. ... The zones are five: the torrid zone, extending from tropic to tropic 46 deg 56 min, or 23 deg 28 mi …
zone 1, 2, 3, 4 of West
In pulmonary physiology, defines the levels in a vertical lung according to the relationships of alveolar gas pressure, capillary blood pressure, and pulmonary venous pressure. ... (05 Mar 2000) ...
zone centrifugation
Synonym for density gradient centrifugation ... <technique> High-speed centrifugation inwhich molecules float at a point wheretheir density equals that in a gradient of cesium chloride or sucrose. ... (12 Jan 1998) ...
zone electrophoresis
<chemistry, procedure> A type of electrophoresis used by physical chemists. In it, the components of a mixture are separated into distinct zones by moving the solution through a porous medium such as filter paper. ... (06 May 1997) ...
zone of inhibition
<microbiology> The area of no bacterial browth around an antimicrobial agent in the disk-diffusion test. ... (09 Oct 1997) ...
zone of optimal proportion
<chemistry> A zone in a solution of mixed antigen in which the two biomolecules are totally combined. ... (11 May 1997) ...
zone of polarizing activity
<cell biology> The small group of mesenchyme cells in avian limb buds that is located at the posterior margin of the developing bud and that produces a substance, possibly retinoic acid, that provides positional information to the developing limb bud. ... (18 Nov 1997) ...
zones of discontinuity
Concentric zone's of varying optical density in the lens of the eye, as seen in slitlamp biomicroscopy. ... (05 Mar 2000) ...
zonesthesia
A sensation as if a cord were drawn around the body, constricting it. ... Synonym: cincture sensation, girdle sensation, strangalesthesia. ... Origin: G. Zone, girdle, + aisthesis, sensation ... (05 Mar 2000) ...
zonifugal
Passing from within any region outward; as in mapping out an area of disturbed sensation, when the stimulus is first applied to the affected region and is carried into the area where sensation is normal. ... Origin: L. Zona, zone, + fugio, to flee ... (05 Mar 2000) ...
zoning
The occurrence of a stronger reaction in a lesser amount of suspected serum, observed sometimes in serologic tests used in the diagnosis of syphilis, and probably the result of high antibody titre. ... (05 Mar 2000) ...
zonipetal
Passing from without toward and into any region; as in mapping out an area of disturbed sensation, when the stimulus begins in a normal area and is carried into the affected region. ... Origin: L. Zona, zone, + peto, to seek ... (05 Mar 2000) ...
