diapsid

adjective

di·​ap·​sid dī-ˈap-səd How to pronounce diapsid (audio)
: 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

Time Traveler
The first known use of diapsid was circa 1909

Dictionary Entries Near diapsid

diapositive

diapsid

Diapsida

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Cite this Entry

“Diapsid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diapsid. Accessed 28 Nov. 2024.

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Britannica.com: Encyclopedia article about diapsid

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