单词 | mesopterygium |
释义 | mesopterygiumnoun mesop·te·ryg·i·um ¦me|ˌzäptəˈrijēəm, ¦mē|, |ˌsä- : the middle one of the three principal basal cartilages in the pectoral fins of various fishes (as the sharks and rays) compare basipterygium |
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