Ostracion \Os*tra"ci*on\, prop. n. [NL., fr. Gr. 'ostra`kion
small shell.] (Zool.)
A genus of plectognath fishes of the family {Ostraciontidae}
having the body covered with solid, immovable, bony plates.
It includes the trunkfishes (also called boxfish).
[1913 Webster +PJC]