| velamen | A water-retaining outer layer of the aerial roots of some epiphytes, especially orchids. (09 Oct 1997) |
|---|---|
| velamen vulvae | Hypertrophy of the labia minora. (05 Mar 2000) |
| velamentous | Expanded in the form of a sheet or veil. Synonym: veliform. (05 Mar 2000) |
| velamentous insertion | A form of insertion of the foetal blood vessels into the placenta, in which the vessels separate before reaching the placenta and develop toward it in a fold of amnion, somewhat like the ribs of an open parasol. Synonym: parasol insertion. (05 Mar 2000) |
| velamentum | Synonym: velum. Origin: L. A cover (05 Mar 2000) |
| velamina | Plural of velamen. (05 Mar 2000) |
| velar | 1. Of or pertaining to a velum; especially. <anatomy> Of or pertaining to the soft palate. 2. Having the place of articulation on the soft palate; guttural; as, the velar consonants, such as k and hard q. See: Velum. Source: Websters Dictionary (01 Mar 1998) |
| velarium | Origin: L, a covering. <zoology> The marginal membrane of certain medusae belonging to the Discophora. Source: Websters Dictionary (01 Mar 1998) |
| velate | <botany> Having a veil; veiled. Origin: L. Velatus, p. P. Of velare to veil. See Veil. Source: Websters Dictionary (01 Mar 1998) |
| veldt disease | An acute febrile disease of cattle, sheep, and goats in sub-Saharan Africa and certain islands in the Indian and Atlantic Oceans and in the Caribbean, caused by the rickettsial organism Cowdria ruminantium and transmitted by ticks of the genus Amblyomma; some species of African antelope and European and American deer also are susceptible. Synonym: cowdriosis, veldt disease. (05 Mar 2000) |
| veldt sore | Any of a variety of chronic non-specific cutaneous ulcers, most commonly on the shins, knees, hands, and forearms, and probably a variant of ecthyma, that occur in tropical and desert areas. Synonym: Barcoo rot, veldt sore. (05 Mar 2000) |
| velella | <zoology> Any species of oceanic Siphonophora belonging to the genus Velella. These creatures are brilliantly coloured and float at the surface of the sea. They have an oblong, disklike body, supported by a thin chitinous plate, from which rises a thin diagonal crest which acts as a sail. The feeding and reproductive zooids hang down from the under side of the disk. Origin: NL, dim. From L. Velum a veil, a sail. Source: Websters Dictionary (01 Mar 1998) |
| velffare | <zoology> The fieldfare. See: Fieldfare. Source: Websters Dictionary (01 Mar 1998) |
| veliform | Synonym: velamentous. Origin: L. Velum, veil, + forma, form (05 Mar 2000) |
| veliger | <zoology> Any larval gastropod or bivalve mollusk in the state when it is furnished with one or two ciliated membranes for swimming. Origin: NL, fr. L. Velum a veil + gerere bear. Source: Websters Dictionary (01 Mar 1998) |