| Turner, Sir William | <person> English anatomist, 1832-1916. See: intraparietal sulcus of Turner, Turner's sulcus. (05 Mar 2000) |
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| turner-kieser syndrome | <syndrome> See nail-patella syndrome (turner in 1933 described two families with the disease. The name turner is more closely associated with the xo syndrome). (12 Dec 1998) |
| turnerite | <chemical> A variety of monazite. Origin: So called from the English chemist and mineralogist, C. H. Turner. Source: Websters Dictionary (01 Mar 1998) |
| turnery | 1. The art of fashioning solid bodies into cylindrical or other forms by means of a lathe. 2. Things or forms made by a turner, or in the lathe. "Chairs of wood, the seats triangular, the backs, arms, and legs loaded with turnery." (Walpole) Origin: Cf. F. Tournerie. Source: Websters Dictionary (01 Mar 1998) |
| turnicimorphae | <ornithology> A division of birds including Turnix and allied genera, resembling quails in appearance but differing from them anatomically. Origin: NL. See Turnix, and -morphous. Source: Websters Dictionary (01 Mar 1998) |
| turnip | <botany> The edible, fleshy, roundish, or somewhat conical, root of a cruciferous plant (Brassica campestris, var. Napus); also, the plant itself. <botany> [Formerly written also turnep] Swedish turnip The turnip flea. A two-winged fly (Anthomyia radicum) whose larvae live in the turnip root. Origin: OE. Turnep; probably fr. Turn, or F. Tour a turn, turning lathe + OE. Nepe a turnip, AS. Naepe, L. Napus. Cf. Turn, Navew. Source: Websters Dictionary (01 Mar 1998) |
| turnip-shell | <zoology> Any one of several large, thick, spiral marine shells belonging to Rapa and allied genera, somewhat turnip-shaped. Source: Websters Dictionary (01 Mar 1998) |
| turnix | <ornithology> Any one of numerous species of birds belonging to Turnix or Hemipodius and allied genera of the family Turnicidae. These birds resemble quails and partridges in general appearance and in some of their habits, but differ in important anatomical characteristics. The hind toe is usually lacking. They are found in Asia, Africa, Southern Europe, the East Indian Islands, and especially. In Australia and adjacent islands, where they are called quails (see Quail, 3). See Turnicimorphae. Origin: NL, fr. L. Coturnix a quail. Source: Websters Dictionary (01 Mar 1998) |
| turnkey | 1. A person who has charge of the keys of a prison, for opening and fastening the doors; a warder. 2. <dentistry> An instrument with a hinged claw, used for extracting teeth with a twist. Source: Websters Dictionary (01 Mar 1998) |
| turnkey system | A system which is built, engineered, and installed to the point of readiness for operation by the owner. (05 Dec 1998) |
| turnover | The movement of something into, through and out of a place, the rate at which a thing is depleted and replaced. (18 Nov 1997) |
| turnover flap | A hinged flap that is turned over 180 |
| turnover number | <biochemistry, pharmacology> Equivalent to Vmax, being the number of substrate molecules converted to product by one molecule of enzyme in unit time, when the substrate is saturating. (18 Nov 1997) |
| turnpike | 1. A frame consisting of two bars crossing each other at right angles and turning on a post or pin, to hinder the passage of beasts, but admitting a person to pass between the arms; a turnstile. See Turnstile. "I move upon my axle like a turnpike." (B. Jonson) 2. A gate or bar set across a road to stop carriages, animals, and sometimes people, till toll is paid for keeping the road in repair; a tollgate. 3. A turnpike road. 4. A winding stairway. 5. A beam filled with spikes to obstruct passage; a cheval-de-frise. Turnpike man, a man who collects tolls at a turnpike. Turnpike road, a road on which turnpikes, or tollgates, are established by law, in order to collect from the users tolls to defray the cost of building, repairing, etc. Origin: Turn + pike. Source: Websters Dictionary (01 Mar 1998) |
| turnsole | 1. <botany> A plant of the genus Heliotropium; heliotrope; so named because its flowers are supposed to turn toward the sun. The sunflower. A kind of spurge (Euphorbia Helioscopia). The euphorbiaceous plant Chrozophora tinctoria. 2. <chemistry> Litmus. A purple dye obtained from the plant turnsole. See def. 1 . Origin: F. Tournesol, It. Tornasole; tornare to turn (LL. Tornare) + sole the sun, L. Sol. See Turn, Solar, and cf. Heliotrope Alternative forms: turnsol. Source: Websters Dictionary (01 Mar 1998) |