| hydradenoma | <tumour> A benign neoplasm derived from epithelial cells of sweat glands. Synonym: hydradenoma. Origin: G. Hidros, sweat, + aden, gland, + -oma, tumour (05 Mar 2000) |
|---|---|
| hydraemia | <medicine> An abnormally watery state of the blood; anaemia. Origin: NL, fr. Gr. "ydwr water + blood. Source: Websters Dictionary (01 Mar 1998) |
| hydraemic oedema | An obsolete term for oedema occurring in states marked by pronounced hydraemia. (05 Mar 2000) |
| hydragogue | <medicine> Causing a discharge of water; expelling serum effused into any part of the body, as in dropsy. A hydragogue medicine, usually a cathartic or diuretic. Origin: L. Hydragogus conveying off water, Gr.; "ydwr water + to lead: cf. F. Hydragogue. Source: Websters Dictionary (01 Mar 1998) |
| hydralazine | <chemical> A peripheral vasodilator used as an antihypertensive agent. Pharmacological action: antihypertensive agents, vasodilator agents. Chemical name: 1(2H)-Phthalazinone, hydrazone (12 Dec 1998) |
| hydralazine hydrochloride | 1-Hydrazinophthalazine hydrochloride;a vasodilating antihypertensive agent. (05 Mar 2000) |
| hydralazine syndrome | <syndrome> A syndrome simulating systemic lupus erythematosus, occurring during protracted therapy of hypertension with hydralazine. (05 Mar 2000) |
| hydrallostane | 11b,17a,21-Trihydroxy-5b-pregnane-3,20-dio ne;a metabolite of cortisole, reduced at the 4,5 double bond. Synonym: 4,5a-dihydrocortisol. (05 Mar 2000) |
| hydramide | <chemistry> One of a group of crystalline bodies produced by the action of ammonia on certain aldehydes. Origin: Hydr- + -amide. Source: Websters Dictionary (01 Mar 1998) |
| hydramine | <chemistry> One of a series of artificial, organic bases, usually produced as thick viscous liquids by the action of ammonia on ethylene oxide. They have the properties both of alcohol and amines. Origin: Hydroxyl + amine. Source: Websters Dictionary (01 Mar 1998) |
| hydramitrazine tartrate | 2,4-Bis(Diethylamino)-6-hydrazino-s-triazine tartrate;an intestinal antispasmodic. (05 Mar 2000) |
| hydramnion | Hydramnios Presence of an excessive amount of amniotic fluid. Origin: G. Hydor, water, + amnion (05 Mar 2000) |
| hydramnios | An abnormal condition of pregnancy characterised by an excess of amnionic fluid. (27 Sep 1997) |
| hydranencephaly | <radiology> Probably secondary to ICA occlusion in utero; may be developmental, normal or enlarged head, with or without neurologically normal, CT findings: small areas of cortex, usually occipital, basal ganglia and cerebellum normal, ventricles have no roof, may resemble severe hydrocephalus, angio most likely to be sparse, atretic vessels, vs. Stretched vessels in hydrocephalus (12 Dec 1998) |
| hydrangea | <botany> A genus of shrubby plants bearing opposite leaves and large heads of showy flowers, white, or of various colours. H. Hortensis, the common garden species, is a native of China or Japan. Origin: NL, fr. Gr. "ydwr water + vessel, capsule: cf. F. Hydrangee. Source: Websters Dictionary (01 Mar 1998) |