ganoid adjective & noun. ['ganɔɪd] M19.
[French ganoïde, from Greek ganos brightness: see -OID.]
A. adjective.
1. Of a fish-scale: having a smooth shining surface, from being covered with a layer of enamel (esp. ganoin). M19.

2. Of a fish: having ganoid scales. Orig. designating an order of primitive bony fishes ('Ganoidei') possessing ganoid scales, mostly extinct but including the living garfishes, sturgeon, and bowfin, now classified as either chondrostean or holostean. M19.
b. noun. A ganoid fish. M19.

■ ganoidal adjective = GANOID adjective 2 M19.

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