noun
oldest known reptiles; turtles and extinct Permian forms
• Syn: ↑subclass Anapsida
• Hypernyms: ↑class
• Member Holonyms: ↑Reptilia, ↑class Reptilia
• Member Meronyms:
↑anapsid, ↑anapsid reptile, ↑Chelonia, ↑order Chelonia, ↑Testudinata, ↑order Testudinata, ↑Testudines, ↑order Testudines
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\\-sədə\ noun pluralUsage: capitalized
: a subclass of Reptilia comprising primitive forms in which the skull lacks temporal openings and including chiefly Permian forms with the turtles as its only present representatives
Useful english dictionary. 2012.