Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • proper noun a taxonomic subclass, within class Reptilia (or a class within superclass Tetrapoda) - the extinct “mammal-likereptiles

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Ancient Greek σύν (syn, "together") + ἁψίς (hapsis, "circle")

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