| reedy nail | A nail marked by longitudinal ridges and furrows. (05 Mar 2000) |
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| 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) |
| Reed-Hodgkin disease |
(Reed-Hodg
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| Reed-Sternberg cells |
(Reed-Stern
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| reentrant circuit |
the circuit formed by the circulating impulse in reentry.
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| reentrant mechanism |
the mechanism by which a locus of unidirectional block to conduction in cardiac muscle can result in ectopic beats or tachyarrhythmias. In addition to the block, also required are at least areas of slow conduction and refractoriness of the tissue to stimulation. ...
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| Rees' test |
(Rees' test) (r[emacr]s) [George Owen Rees, English physician, 1813?889] see under test.
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| REE | tall marsh plant with cylindrical seed heads that explode when mature shedding large quantities of down |
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| REE | a pasture grass of moist places throughout North America |
| REE | a free-reed instrument in which air is forced through the reeds by bellows |
| REE | organ pipe with a vibrating reed |
| REE | Chinese lady palm with more slender stems and finer sheath fibers than Rhapis excelsa |
| REE | the section of a band or orchestra that plays reed instruments |
| REE | an organ stop with the tone of a reed instrument |
| REE | small European warbler that breeds among reeds and wedges and winters in Africa |
| REE | migratory American songbird |
| REE | resembling a reed in being upright and slender |
| REE | tall marsh plant with cylindrical seed heads that explode when mature shedding large quantities of down |
| REE | resembling a reed in being upright and slender |