| hygrology | <medicine> The science which treats of the fluids of the body. Origin: Gr. Wet: cf. F. Hygrologie. Source: Websters Dictionary (01 Mar 1998) |
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| hygroma | A cystic swelling containing a serous fluid, such as cystic lymphangioma, housemaid's knee, etc. Synonym: hydroma. Origin: hygro-+ G. -oma, tumour Hygroma axillare, hygroma of the axillary region. (05 Mar 2000) |
| hygroma colli cysticum | A benign cystic overgrowth of lymphatics of the neck, present at birth, which may form a large tumour-like mass. Synonym: cervical hygroma. (05 Mar 2000) |
| hygrometer | <physics> An instrument for measuring the degree of moisture of the atmosphere. Daniell's hygrometer, a form of hygrometer consisting of a bent glass tube terminating in two bulbs, the one covered with muslin, the other of black glass, and containing ether and a thermometer. Ether being poured on the muslin, the black ball, cooled by the evaporation of the ether within, is soon covered with dew; at this moment, the inclosed thermometer gives the dew-point, and this, compared with the reading of one in the air, determines the humidity. Origin: Gr. Wet, moist: cf. F. Hygrometre. Source: Websters Dictionary (01 Mar 1998) |
| hygrometry | <physics> That branch of physics which relates to the determination of the humidity of bodies, particularly of the atmosphere, with the theory and use of the instruments constructed for this purpose. Origin: Cf. F. Hygrometrie. Source: Websters Dictionary (01 Mar 1998) |
| hygromycin | An antibiotic from the bacterial species Streptomyces hygroscopicus and Streptomyces noboritoensis. It is useful against a wide range of different pathogenic microbes. (09 Oct 1997) |
| hygromycin b | <chemical> O-6-amino-6-deoxy-l-glycero-d-galacto-heptopyranosylidene- (1-2-3)-o-beta-d-talopyranosyl-(1-5)-2-deoxy-n(3)-methyl-d- streptamine. Antibiotic substance produced by streptomyces hygroscopicus. It is used as an anthelmintic against swine infections by large roundworms, nodular worms, and whipworms. Pharmacological action: anthelmintic, antibiotics, aminoglycoside. Chemical name: D-Streptamine, O-6-amino-6-deoxy-L-glycero-D-galacto-heptopyranosylidene-(1-2-3)-O-beta-D-talopyranosyl-(1-5)-2-deoxy-N3-methyl- (12 Dec 1998) |
| hygromycin-B kinase | <enzyme> Phosphorylates hygromycin b, 1-n-hygromycin b and destomycin, but not hygromycin b2 at the 7''-hydroxyl group in the destomic acid ring Registry number: EC 2.7.1.119 Synonym: ATP-hygromycin-b 7''-o-phosphotransferase, hygromycin phosphotransferase, hph gene product (26 Jun 1999) |
| hygrophobia | <psychology> Morbid fear of dampness or moisture. Origin: hygro-+ G. Phobos, fear (05 Mar 2000) |
| hygrophthalmic | <anatomy> Serving to moisten the eye; sometimes applied to the lachrymal ducts. Origin: Gr. Wet + E. Ophthalmic. Source: Websters Dictionary (01 Mar 1998) |
| hygroplasm | <biology> The fluid portion of the cell protoplasm, in opposition to stereoplasm, the solid or insoluble portion. The latter is supposed to be partly nutritive and partly composed of idioplasm. Origin: Gr. Wet + form, mold. Source: Websters Dictionary (01 Mar 1998) |
| hygroscope | <instrument, physics> An instrument which shows whether there is more or less moisture in the atmosphere, without indicating its amount. Origin: Gr. Wet + -scope: cf. F. Hygroscope. Source: Websters Dictionary (01 Mar 1998) |
| hygroscopic | Pertaining to tissue or substance that is sensitive to water orwater vapor. Pertaining to a substance that accelerates the condensation of water vapor. Pertaining to water that iselectrostatically bound to the surface of dirt particles and is thereforeunavailable to plants. (09 Oct 1997) |
| hygroscopic expansion | Expansion due to the absorption of moisture, in dental casting, the addition of water to the surface of the casting investment during setting to increase the size of the mold. (05 Mar 2000) |
| hygroscopicity | <botany> The property possessed by vegetable tissues of absorbing or discharging moisture according to circumstances. Source: Websters Dictionary (01 Mar 1998) |