Ossein \Os"se*in\, n. [L. os bone.] (Physiol. Chem.) 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; bone collagen; -- called also {ostein}. Chemically it is the same as collagen. [1913 Webster +PJC]
Ostein \Os"te*in\, n. [Gr. 'oste`on bone.] Ossein. [1913 Webster]