| valence | <biochemistry> The number of binding sites on a molecule. <chemistry> A number which reflects an element's ability to combine with other elements <immunology> The number of antigen binding sites an antibody has, or the number of antigenic determinants an antigen has (09 Oct 1997) |
|---|---|
| valence electron | One of the electron's that take part in chemical reactions of an atom. (05 Mar 2000) |
| valency | <chemistry> See Valence. A unit of combining power; a so-called bond of affinity. Source: Websters Dictionary (01 Mar 1998) |
| valent | Possessing valence. (05 Mar 2000) |
| Valentin | Gabriel G., German-Swiss physiologist, 1810-1883. See: Valentin's corpuscles, Valentin's ganglion, Valentin's nerve. (05 Mar 2000) |
| Valentin's corpuscles | Small bodies, probably amyloid, found occasionally in nerve tissue. (05 Mar 2000) |
| Valentin's ganglion | A ganglion on the superior alveolar nerve. (05 Mar 2000) |
| Valentin's nerve | <anatomy, nerve> A nerve that connects the pterygopalatine ganglion with the abducens nerve. (05 Mar 2000) |
| valentine | 1. A sweetheart chosen on St. Valentine's Day. 2. A letter containing professions of love, or a missive of a sentimental, comic, or burlesque character, sent on St. Valentine's Day. St. Valentine's Day, a day sacred to St. Valentine; the 14th of February. It was a very old notion, alluded to by Shakespeare, that on this day birds begin to mate. Hence, perhaps, arose the custom of sending love tokens at that time. Source: Websters Dictionary (01 Mar 1998) |
| Valentine's position | A supine position on a table with double inclined plane so as to cause flexion at the hips; used to facilitate urethral irrigation. (05 Mar 2000) |
| Valentine's test | The bladder is emptied by passing urine into a series of 3-ounce test tubes, and the contents of the first and the last are examined; the first tube contains the washings from the anterior urethra, the second, material from the bladder, and the last, material from the posterior urethra, prostate, and seminal vesicles. Synonym: Valentine's test. (05 Mar 2000) |
| valepotriates | A class of iridoid alkaloids from Valeriana sp. And Kentranthus sp.; e.g., the drug valtratum is a member of this class. (05 Mar 2000) |
| valeramide | <chemistry> The acid amide derivative of valeric acid, obtained as a white crystalline substance. Origin: Valeric + amide. Source: Websters Dictionary (01 Mar 1998) |
| valerate | <chemistry> A salt of valeric acid. Source: Websters Dictionary (01 Mar 1998) |
| valerian | <botany> Any plant of the genus Valeriana. The root of the officinal valerian (V. Officinalis) has a strong smell, and is much used in medicine as an antispasmodic. <botany> Greek valerian, a plant (Polemonium caeruleum) with blue or white flowers, and leaves resembling those of the officinal valerian. Origin: LL. Valeriana, perhaps from some person named Valerius, or fr. L. Valere to be strong. Powerful, on account of its medicinal virtues: cf. F. Valeriane. Source: Websters Dictionary (01 Mar 1998) |