| percomorph oil | A liver oil from fish of the order Percomorphi, with a standardised amount of vitamins A and D. (05 Mar 2000) |
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| percomorphi | <zoology> A division of fishes including the perches and related kinds. Origin: NL, fr. L. Perca perch + Gr. Form. Source: Websters Dictionary (01 Mar 1998) |