malacopterygian

from WordNet (r) 3.0 (2006)

malacopterygian
    n 1: any fish of the superorder Malacopterygii [syn: {soft-
         finned fish}, {malacopterygian}] [ant: {acanthopterygian},
         {spiny-finned fish}]

from The Collaborative International Dictionary of English v.0.48

Malacopterygian \Mal`a*cop`ter*yg"i*an\, n. [Cf. F.
   malacopt['e]rygien.] (Zool.)
   One of the {Malacopterygii}.
   [1913 Webster]

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