| 释义 |
thecodontenUK
the·co·dont T0146650 (thē′kə-dŏnt′)n. Any of various extinct early archosaurs that existed in the Permian and Triassic Periods and had teeth set in sockets rather than attached directly to the jaw. The group Thecodontia in which they were once placed is no longer in scientific use.
[New Latin Thēcodontia, order name : Greek thēkē, chest, sheath; see dhē- in Indo-European roots + Greek -odōn, -odont-, -odont.]thecodont (ˈθiːkəˌdɒnt) adj1. (Zoology) (of mammals and certain reptiles) having teeth that grow in sockets2. (Zoology) of or relating to teeth of this typen (Palaeontology) any extinct reptile of the order Thecodontia, of Triassic times, having teeth set in sockets: they gave rise to the dinosaurs, crocodiles, pterodactyls, and birds[C20: New Latin Thecondontia, from Greek thēkē case + -odont]Thesaurus| Noun | 1. | thecodont - presumably in the common ancestral line to dinosaurs and crocodiles and birdsthecodont reptilearchosaur, archosaurian, archosaurian reptile - extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodontsorder Thecodontia, Thecodontia - extinct terrestrial reptiles having teeth set in sockets; of the late Permian to Triassic |
EncyclopediaSeeThecodontiathecodontenUK
the·co·dont (thē'kō-dont), Having the teeth inserted in alveoli. [G. thēkē, box, + odous (odont-), tooth] thecodont (thē′kō-dŏnt) [Gr. theke, sheath, + odous, tooth] Having teeth that are inserted in sockets.the·co·dont (thē'kō-dont) Having teeth inserted in alveoli. [G. thēkē, box, + odous(odont-), tooth]thecodontenUK
Related to thecodont: HeterodontSynonyms for thecodontnoun presumably in the common ancestral line to dinosaurs and crocodiles and birdsSynonymsRelated Words- archosaur
- archosaurian
- archosaurian reptile
- order Thecodontia
- Thecodontia
|