diapsid

adjective

di·​ap·​sid dī-ˈap-səd 

: of, relating to, or including reptiles (such as the crocodiles) with two pairs of temporal openings in the skull

Word History

Etymology

ultimately from Greek di- + hapsid-, hapsis loop, arch — more at apsis

First Known Use

circa 1909, in the meaning defined above

Rhymes for diapsid

• capsid