| unguis | Origin: L, nail, claw, or hoof. 1. The nail, claw, talon, or hoof of a finger, toe, or other appendage. 2. <zoology> One of the terminal hooks on the foot of an insect. 3. <botany> The slender base of a petal in some flowers; a claw. Synonym: ungula. Source: Websters Dictionary (01 Mar 1998) |
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| unguis aduncus | A toenail, one edge of which is overgrown by the nailfold, producing a pyogenic granuloma; due to faulty trimming of the toenails or pressure from a tight shoe. Synonym: ingrowing toenail, onychocryptosis, onyxis, unguis aduncus, unguis incarnatus. (05 Mar 2000) |
| unguis avis | The lower of two elevations on the medial wall of the posterior horn of the lateral ventricle of the brain, caused by the depth of the calcarine sulcus. Synonym: Haller's unguis, hippocampus minor, minor hippocampus, Morand's spur, unguis avis. (05 Mar 2000) |
| unguis incarnatus | A toenail, one edge of which is overgrown by the nailfold, producing a pyogenic granuloma; due to faulty trimming of the toenails or pressure from a tight shoe. Synonym: ingrowing toenail, onychocryptosis, onyxis, unguis aduncus, unguis incarnatus. (05 Mar 2000) |
| leukopathia unguis | The occurrence of white spots or patches under the nails, of unknown cause; the decoloration may be total or in the form of lines (striate or transverse leukonychia) or dots (punctate leukonychia). Synonym: achromia unguium, canities unguium, leukopathia unguis. Origin: Leuko-+ G. Onyx (onych-), nail Apparent leukonychia, pallor of the nail not due to subungual air bubbles. (05 Mar 2000) |
| amalgam matrix | A device used during placement of the amalgam mass within a compound cavity preparation, facilitating proper condensation and contour thereof by providing a confining wall. (05 Mar 2000) |
| bone matrix | The intercellular substance of bone tissue consisting of collagen fibres, ground substance, and inorganic bone salts. (05 Mar 2000) |
| cartilage matrix | The intercellular substance of cartilage consisting of fibres and ground substance. (05 Mar 2000) |
| matrix | Ground substance in which things are embedded or that fills a space (as for example the space within the mitochondrion). most common usage is for a loose meshwork within which cells are embedded (e.g. Extracellular matrix), although it may also be used of filters or absorbent material. (18 Nov 1997) |
| matrix-associated helicase | <enzyme> Component of the pre-mRNA splicing complex; has atpase activity and DNA helicase activity on a partially double-stranded DNA substrate in the 3'-5' direction Registry number: EC 2.7.7.- Synonym: helicase mah (26 Jun 1999) |
| matrix band | A metal or plastic band secured around the crown of a tooth to confine restorative material to be adapted into a prepared cavity. (05 Mar 2000) |
| matrix bands | Devices which provide an artificial temporary wall, or matrix, used in filling a prepared cavity. (12 Dec 1998) |
| matrix calculi | <radiology> Radiolucent, associated with Proteus infection, composition: 2/3 mucoprotein, 1/3 mucopolysaccharide see also: renal calculi (12 Dec 1998) |
| matrix calculus | A yellowish-white to light tan urinary calculus containing calcium salts, with the consistency of putty; composed chiefly of an organic matrix consisting of a mucoprotein and a sulfated mucopolysaccharide, and usually associated with chronic infection. (05 Mar 2000) |
| matrix Gla protein | A calcium binding protein. (05 Mar 2000) |