metapterygium

noun

me·​tap·​ter·​yg·​i·​um

mə̇¦taptə¦rijēəm

plural metapterygia

-jēə

: the posterior of the three principal basal cartilages in the pectoral fins of some fishes (as sharks and rays) compare basipterygium

Word History

Etymology

New Latin, from meta- + Greek pterygion fin, literally, small wing

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