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1. (n.) crossopterygian
any fish of the group Crossopterygii, extinct except for the coelacanth, and including the ancestors of amphibians and other land vertebrates.
2. (adj.) crossopterygian
pertaining to or resembling a crossopterygian.
Etymology: (1860–65; < NL Crossopterygi(i) (< Gk kross(oí) tassels, fringe +-o- -o - +pterýgi(on) little wing or fin, dim. of ptéryx, s. pteryg- wing, fin) + -an1)
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| Definition of 'crossopterygian' |
Princeton's WordNet |
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1. (noun) crossopterygian, lobefin, lobe-finned fish
any fish of the order Crossopterygii; most known only in fossil form
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| Definition of 'crossopterygian' |
Webster Dictionary |
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1. (adj) crossopterygian
of or pertaining to the Crossopterygii
2. (noun) crossopterygian
one of the Crossopterygii
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Definitions of crossopterygian 
