| reptant | 1. <botany> Same as Repent. 2. <zoology> Creeping; crawling; said of reptiles, worms, etc. Origin: L. Reptans, -antis, p. Pr. Of reptare, v. Intens. From repere to creep. See Reptile. Source: Websters Dictionary (01 Mar 1998) |
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| reptantia | <zoology> A divisiom of gastropods; the Pectinibranchiata. Source: Websters Dictionary (01 Mar 1998) |
| reptation | <zoology> The act of creeping. Origin: L. Reptatio, from reptare: cf. F. Reptation. Source: Websters Dictionary (01 Mar 1998) |
| reptatory | <zoology> Creeping. Source: Websters Dictionary (01 Mar 1998) |
| reptilase | <enzyme> A proteolytic enzyme obtained from the venom of fer de lance (bothrops atrox). It is used as a plasma clotting agent for fibrinogen and for the detection of fibrinogen degradation products. The presence of heparin does not interfere with the clotting test. Pharmacological action: fibrinolytic agent. Registry number: EC 3.4.21.29 (12 Dec 1998) |
| reptile | 1. <zoology> An animal that crawls, or moves on its belly, as snakes, or by means of small, short legs, as lizards, and the like. "An inadvertent step may crush the snail That crawls at evening in the public path; But he that has humanity, forewarned, Will tread aside, and let the reptile live." (Cowper) 2. <zoology> One of the Reptilia, or one of the Amphibia. The amphibians were formerly classed with Reptilia, and are still popularly called reptiles, though much more closely allied to the fishes. 3. A groveling or very mean person. Source: Websters Dictionary (01 Mar 1998) |
| reptilia | <zoology> A class of air-breathing oviparous vertebrates, usually covered with scales or bony plates. The heart generally has two auricles and one ventricle. The development of the young is the same as that of birds. It is nearly related in many respects to Aves, or birds. The principal existing orders are Testidunata or Chelonia (turtles), Crocodilia, Lacertilla (lizards), Ophidia (serpents), and Rhynchocephala; the chief extinct orders are Dinosauria, Theremorpha, Mosasauria, Pterosauria, Plesiosauria, Ichtyosauria. Source: Websters Dictionary (01 Mar 1998) |
| reptilian | Belonging to the reptiles. <geology> Reptilian age, that part of geological time comprising the Triassic, Jurassic, and Cretaceous periods, and distinguished as that era in which the class of reptiles attained its highest expansion; called also the Secondary or Mezozoic age. <zoology> One of the Reptilia; a reptile. Source: Websters Dictionary (01 Mar 1998) |