| UV | <physics> Invisible light, next to visible light in the electromagnetic spectrum. The most common source of ultraviolet radiation is the sun. Acronym: UV (16 Dec 1997) |
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| UV endonuclease | <chemical> Uv endonuclease induced by phage t4 contains endodeoxyribonuclease pyrimidine dimer (EC 3.1.25.1), DNA glycosidase and apyrimidinic-apurinic endonuclease (EC 3.1.25.2) Chemical name: nuclease, uv-endodeoxyribo- Synonym: t4-induced uv endonuclease (26 Jun 1999) |
| UV incision nuclease | <enzyme> DNA repair enzymes which nick at thymine dimers or thymine glycols in damaged DNA, later enzymes excise the damaged part Registry number: EC 3.1.- Synonym: incision endonuclease (26 Jun 1999) |
| uva | <botany> A small pulpy or juicy fruit containing several seeds and having a thin skin, as a grape. Origin: L, a grape. Source: Websters Dictionary (01 Mar 1998) |
| uva ursi | The dried leaves of Arctostaphylos uva-ursi (family Ericaceae), bearberry, mountain box, a common plant of the north temperate zone; contains antiseptic glycosides, arbutin, methylarbutin, and tannins; has been used in chronic inflammations of the urinary tract. Origin: L. Uva, grape + ursus, bear (05 Mar 2000) |
| uva-ursi | <botany> The bearberry. Origin: NL, fr. L. Uva grape + ursus bear. Source: Websters Dictionary (01 Mar 1998) |
| uvaeformis | Synonym: vascular lamina of choroid. Origin: L. Uva, grape, + forma, form (05 Mar 2000) |
| UVB | <abbreviation> Ultraviolet B. (05 Mar 2000) |
| UVC | <abbreviation> Ultraviolet C. (05 Mar 2000) |
| uvea | <anatomy> The posterior pigmented layer of the iris; sometimes applied to the whole iris together with the choroid coat. Origin: NL, fr. L. Uva grape. Source: Websters Dictionary (01 Mar 1998) |
| uveal | Relating to the uvea. (05 Mar 2000) |
| uveal diseases | Diseases of the uvea. (12 Dec 1998) |
| uveal part of trabecular reticulum | The posterior part of the trabecular reticulum, located between the scleral spur, the ciliary body, and the anterior surface of the iris. Synonym: pars uvealis reticuli trabecularis. (05 Mar 2000) |
| uveal staphyloma | Seldom-used term for protrusion of the iris through a rupture of the sclera. (05 Mar 2000) |
| uveal tract | The vascular, pigmentary, or middle coat of the eye, comprising the choroid, ciliary body, and iris. Synonym: tunica vasculosa bulbi, Haller's tunica vasculosa, tunica vasculosa oculi, uvea, uveal tract. (05 Mar 2000) |