adjective
- of or relating to the Ganoidei, a group of mostly extinct fishes characterized by hard, bony scales, the living species of which include the paddlefishes, sturgeons, and gars.
- (of the scale of a fish) having a smooth, shiny surface of ganoin or a similar substance.
noun
- a ganoid fish.
adjective
- (of the scales of certain fishes) consisting of an inner bony layer and an outer layer of an enamel-like substance (ganoin)
- denoting fishes, including the sturgeon and bowfin, having such scales
noun
- a ganoid fish