hydroperoxide dehydratase |
<enzyme> Catalyses the formation of 12,13-epoxy-9,11,15-octadecatrienoic acid from 13-hydroperoxy-9,11,15-octadecatrienoic acid ; also acts on 13-hydroperoxy-9,11-octadecadienoic acid Registry number: EC 4.2.1.- Synonym: hydroperoxide dehydrase (26 Jun 1999) |
|---|---|
hydroperoxide lyase |
<enzyme> Rabbit leukocyte enzyme; converts 15-hpete to 15-ketopentadeca-5,8,11,13-tetraenoic acid plus pentanol Registry number: EC 4.1.2.- Synonym: fatty acid hydroperoxide lyase, hpo lyase (26 Jun 1999) |
hydrophane |
<chemical> A semitranslucent variety of opal that becomes translucent or transparent on immersion in water. Origin: Hydro-, 1 + Gr. To show, appear: cf. F. Hydrophane. Source: Websters Dictionary (01 Mar 1998) |
hydrophanous |
<chemical> Made transparent by immersion in water. Source: Websters Dictionary (01 Mar 1998) |
hydrophid |
<zoology> Any sea snake of the genus Hydrophys and allied genera. These snakes are venomous, live upon fishes, and have a flattened tail for swimming. Origin: Hydro-, 1 + Gr. A small serpent. Source: Websters Dictionary (01 Mar 1998) |
hydrophid venoms |
Venoms of sea snakes, hydrophiinae, found around pacific islands. The venoms contain fewer enzymes and more neuro- or myotoxins than land snakes. The neurotoxic proteins are similar to elapid small, short, or type I neurotoxins, some of which have been characterised. (12 Dec 1998) |
hydrophidae |
A family of sea snakes comprising about 50 species with flattened oar-like tails used as sculls. They are found mostly in the coastal waters of south asia and Australia. The largest reach a length of almost 9 feet but most species are only about a third as long. They are all venomous. (goin, goin, and zug, introduction to herpetology, 3d ed, pp331-3; moore: poisonous snakes of the world, 1980, p159) (12 Dec 1998) |
hydrophil |
Hydrophile A substance that is hydrophilic. (05 Mar 2000) |
hydrophilia |
A tendency of the blood and tissues to absorb fluid. Origin: hydro-+ G. Philos, fond (05 Mar 2000) |
hydrophilic |
<chemistry> Readily absorbing moisture, hygroscopic, having strongly polar groups that readily interact with water. (18 Nov 1997) |
hydrophilic colloid |
A colloidal dispersion in which the dispersed particles are more or less liquid and exert a certain attraction on and absorb a certain quantity of the fluid in which they are suspended. Synonym: emulsion colloid, hydrophil colloid, hydrophilic colloid, lyophilic colloid. (05 Mar 2000) |
hydrophilic group |
<chemistry> A polar group or one that can take part in hydrogen bond formation, for example OH, COOH, NH2. Confers water solubility or in lipids and macromolecules causes part of the structure to make close contact with the aqueous phase. (18 Nov 1997) |
hydrophilic ointment |
An ointment base consisting of 25% each of white petrolatum and stearyl alcohol, 12% propyl glycol emulsified in 37% water by 1% of lauryl sulfate; preserved with paraben. Suitable for the incorporation of numerous drugs intended for local application; a washable ointment base. (05 Mar 2000) |
hydrophilic petrolatum |
Petrolatum composed of cholesterol 30 g, stearyl alcohol 30 g, white wax 80 g, and white petrolatum 860 g, to make 1000 g. Light liquid petrolatum, light mineral oil. White petrolatum, of the same composition as petrolatum except that it is decolorised by treatment with activated charcoal; used for the same purposes as petrolatum. Synonym: white soft paraffin. (05 Mar 2000) |
hydrophilic signaling molecule |
<molecular biology> A type of molecule which, because it is easily dissolved in water (it is hydrophilic), can easily move through cell membranes and thus can be secreted from one cell and move into a target cell where it triggers a particular event. Many hormones and growth factors are hydrophilic signaling molecules. (09 Oct 1997) |