• Webster's Revised Unabridged Dictionary
    • prop. n Ostracion (Zoöl) A genus of plectognath fishes of the family Ostraciontidae having the body covered with solid, immovable, bony plates. It includes the trunkfishesalso called boxfish).
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Century Dictionary and Cyclopedia
    • n Ostracion A genus of fishes with an exoskeleton of juxtaposed hexagonal plates forming a hard shell of bone, typical of the family Ostraciontidæ They are known as cow-fishes, trunk-fishes, and coffer-fishes. See cut under cow-fish.
    • n Ostracion [lowercase] A fish of this genus; an ostraciont.
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Webster's Revised Unabridged Dictionary
NL., fr. Gr. 'ostra`kion small shell


In literature:

I shall notice chiefly ostracions peculiar to the Red Sea, the Indian Ocean, and that part which washes the coast of tropical America.
"Twenty Thousand Leagues under the Sea" by Jules Verne

In news:

Male spotted boxfish, Ostracion meleagris.