plural propterygia
: the anterior of the three principal basal cartilages in the paired fins of some fishes (as sharks and rays) compare basipterygium

Word History


New Latin, from pro- entry 1 + Greek pterygion fin, literally, small wing

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Dictionary Entries Near propterygium

Cite this Entry

“Propterygium.” Dictionary, Merriam-Webster, Accessed 9 Dec. 2023.

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