hydrarthrus |
<medicine> An effusion of watery liquid into the cavity of a joint. Origin: NL. See Hydro-, 1, and Arthrosis. Source: Websters Dictionary (01 Mar 1998) |
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hydrase |
Former name for hydratase. (05 Mar 2000) |
hydrastine |
<chemistry> An alkaloid, found in the rootstock of the golden seal (Hydrastis Canadensis), and extracted as a bitter, white, crystalline substance. It is used as a tonic and febrifuge. Source: Websters Dictionary (01 Mar 1998) |
hydrastinine |
A semisynthetic alkaloid prepared from hydrastine; the hydrochloride has been used in uterine haemorrhage and as an oxytocic; in large doses, it is a powerful depressant of the entire motor tract (motor cortex, nerve, and muscle). (05 Mar 2000) |
hydrastis |
The dried rhizome of Hydrastis canadensis (family Ranunculaceae), a native of the eastern U.S.; formerly used in the treatment of chronic catarrhal states of the mucous membranes and in metrorrhagia. Synonym: golden seal, jaundice root, yellow root. Origin: Mod. L. Fr. G. Hydor (hydro-), water, + drao, to accomplish (05 Mar 2000) |
hydratase |
Trivial name applied, together with dehydratase, to certain hydro-lyases (EC class 4.2.1) catalyzing hydration-dehydration; e.g., fumarate-malate interconversion by fumarate hydratase. (05 Mar 2000) |
hydrate |
<chemistry> A compound formed by the union of water with some other substance, generally forming a neutral body, as certain crystallized salts. A substance which does not contain water as such, but has its constituents (hydrogen, oxygen, hydroxyl) so arranged that water may be eliminated; hence, a derivative of, or compound with, hydroxyl; hydroxide; as, ethyl hydrate, or common alcohol; calcium hydrate, or slaked lime. Origin: Gr. "ydwr water: cf. F. Hydrate. Source: Websters Dictionary (01 Mar 1998) |
hydrate crystal |
One of several possible microstructural arrangements of water molecules based on intermolecular forces; suggested as being involved in the mode of action of inhalation anaesthetics. (05 Mar 2000) |
hydrate microcrystal theory of anaesthesia |
A theory of narcosis pertaining to nonhydrogen-bonding agents; postulates the interaction of the molecules of the anaesthetic drug with water molecules in the brain. Synonym: Pauling's theory. (05 Mar 2000) |
hydrated |
Combined with water, forming a hydrate. Synonym: hydrous. (05 Mar 2000) |
hydrated alumina |
<chemical> Hydrated aluminum. A compound with many biomedical applications: as a gastric antacid, an antiperspirant, in dentifrices, as an emulsifier, as an adjuvant in bacterins and vaccines, in water purification, etc. Pharmacological action: antacids, pharmaceutic aid. Chemical name: Aluminum hydroxide (Al(OH)3) (12 Dec 1998) |
hydration |
The condition of being combined with water. (18 Nov 1997) |
hydraulic |
Of or pertaining to hydraulics, or to fluids in motion; conveying, or acting by, water; as, an hydraulic clock, crane, or dock. Hydraulic accumulator, an accumulator for hydraulic machinery of any kind. See Accumulator. Hydraulic brake, a cataract. See Cataract. Hydraulic cement, a cement or mortar made of hydraulic lime, which will harden under water. Hydraulic elevator, a lift operated by the weight or pressure of water. Hydraulic jack. See Jack. Hydraulic lime, quicklime obtained from hydraulic limestone, and used for cementing under water, etc. Hydraulic limestone, a limestone which contains some clay, and which yields a quicklime that will set, or form a firm, strong mass, under water. Hydraulic main An inverted cup with a partition dipping into water, for opening or closing communication between two gas mains, the open ends of which protrude about the water. Origin: F. Hydraulique, L. Hydraulicus, fr. Gr, a water organ; "ydwr water + flute, pipe. See Hydra. Source: Websters Dictionary (01 Mar 1998) |
hydraulic conductivity |
Ease of pressure filtration of a liquid through a membrane; specifically, Kf = η(Q/A) (dx/dP), where Kf = hydraulic conductivity, η = viscosity of the liquid being filtered, Q/A = volume of liquid filtered per unit time and unit area, and dx/dP = reciprocal of the pressure gradient through the membrane; solute concentrations should be identical on both sides of the membrane. Also applied more loosely to measurements on a total membrane of unknown area and thickness with unmeasured fluid viscosity (K = Q/dP). (05 Mar 2000) |
hydraulic load |
Amount of liquid going into a system. (05 Dec 1998) |
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hydration
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An addition reaction in which water, H-OH, is added. The reverse reaction is called dehydration.
출처: www.geocities.com/Athens/Thebes/5118/obc/402gloss....
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hydrazine sulfate
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A substance that has been studied as a treatment for cancer and as a treatment for cachexia (body wasting) associated with advanced cancer.
출처: www.stjude.org/glossary
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hydraulics
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Branch of fluid mechanics that deals with the flow of water in open channels, closed conduits, hydraulic structures, and hydraulic machines (pumps, turbines, presses, etc.).
출처: amsglossary.allenpress.com/glossary/browse
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hydration
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A measure of the water content of the body tissues.
출처: www.spinalnet.co.uk/EEndCom/GBCON/homepage.nsf/0/C...
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hydration
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the replacement of body fluids by mouth or intravenously.
출처: www.sfaf.org/treatment/beta/b34/b34glos.html
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