OSSEAN
Os"se*an, n. (Zoöl.)
Defn: A fish having a bony skeleton; a teleost.
OSSEIN
Os"se*in, n. Etym: [L. os bone.] (Physiol. Chem.)
Defn: The organic basis of bone tissue; the residue after removal of the mineral matters from bone by dilute acid; in embryonic tissue, the substance in which the mineral salts are deposited to form bone; — called also ostein. Chemically it is the same as collagen.
OSSELET
Os"se*let, n. Etym: [F.]
1. A little bone.
2. (Zoöl.)
Defn: The internal bone, or shell, of a cuttlefish.
OSSEOUS Os"se*ous, a. Etym: [L. osseus, from os, ossis bone; akin to Gr. asthi. Cf. Oyster.]
Defn: Composed of bone; resembling bone; capable of forming bone; bony; ossific.