\Scler"o*derm\ (? or ?; 277), n. [Gr. sklhro`s hard +
de`rma skin: cf. F. scl['e]roderme.]
(a) (Zo["o]l.) One of a tribe of plectognath fishes
    ({Sclerodermi}) having the skin covered with hard scales,
    or plates, as the cowfish and the trunkfish.
(b) One of the Sclerodermata.
(c) Hardened, or bony, integument of various animals.