| 单词 | crossopterygian |
| 释义 | crossopterygian /kro sop'teuh rij"ee euhn/, n. 1. any fish of the group Crossopterygii, extinct except for the coelacanth, regarded as being ancestral to amphibians and other land vertebrates. adj. 2. pertaining to or resembling a crossopterygian. [1860-65; < NL Crossopterygi(i) group name ( < Gk kross(oí) tassels, fringe + -o- -O- + pterýgi(on) little wing or fin, equiv. to pteryg- (s. of pterýx) wing, fin + -ion dim. suffix) + -AN] |
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