| reedy nail | A nail marked by longitudinal ridges and furrows. (05 Mar 2000) |
|---|---|
| reef | 1. A chain or range of rocks lying at or near the surface of the water. See Coral reefs, under Coral. 2. <chemical> A large vein of auriferous quartz; so called in Australia. Hence, any body of rock yielding valuable ore. <zoology> Reef builder, any heron of the genus Demigretta; as, the blue reef heron (D.jugularis) of Australia. Origin: Akin to D. Rif, G. Riff, Icel. Rif, Dan. Rev; cf. Icel. Rifa rift, rent, fissure, rifa to rive, bear. Cf. Rift, Rive. Source: Websters Dictionary (01 Mar 1998) |
| reefing | Surgically reducing the extent of a tissue by folding it and securing with sutures, as in plication. (05 Mar 2000) |
| reel | 1. A frame with radial arms, or a kind of spool, turning on an axis, on which yarn, threads, lines, or the like, are wound; as, a log reel, used by seamen; an angler's reel; a garden reel. 2. A machine on which yarn is wound and measured into lays and hanks, for cotton or linen it is fifty-four inches in circuit; for worsted, thirty inches. 3. <agriculture> A device consisting of radial arms with horizontal stats, connected with a harvesting machine, for holding the stalks of grain in position to be cut by the knives. Reel oven, a baker's oven in which bread pans hang suspended from the arms of a kind of reel revolving on a horizontal axis. Origin: AS. Krel: cf. Icel. Krll a weaver's reed or sley. Source: Websters Dictionary (01 Mar 1998) |
| reel foot | Archaic term for clubfoot. (05 Mar 2000) |
| reeler | 1. One who reels. 2. <zoology> The grasshopper warbler; so called from its note. Source: Websters Dictionary (01 Mar 1998) |
| reem | <zoology> The Hebrew name of a horned wild animal, probably the Urus. In King James's Version it is called unicorn; in the Revised Version,wild ox. Origin: Heb. Source: Websters Dictionary (01 Mar 1998) |
| reenactment | In psychodrama, the acting out of a past experience. (05 Mar 2000) |
| Reenstierna, John | <person> Swedish dermatologist, *1882. See: Ito-Reenstierna test. (05 Mar 2000) |
| reentry | Return of the same impulse into a zone of heart muscle that it has recently activated; sufficiently delayed that the zone is no longer refractory, as seen in most ectopic beats, reciprocal rhythms, and most tachycardias. (05 Mar 2000) |
| reentry theory | That extrasystoles are due to reentry of an impulse initiated by the sinus impulse, to which the extrasystole is coupled, into the ectopic focus. (05 Mar 2000) |
| reermouse | <zoology> See Rearmouse. Source: Websters Dictionary (01 Mar 1998) |
| Rees, H Maynard | <person> 20th century U.S. Physician. See: Rees-Ecker fluid. (05 Mar 2000) |
| Rees-Ecker fluid | An aqueous solution of sodium citrate, sucrose, and brilliant cresyl blue used in platelet counts. (05 Mar 2000) |
| Reese, Algernon | <person> U.S. Ophthalmologist, 1896-1981. See: Cogan-Reese syndrome. (05 Mar 2000) |