OSTEOPLASTY
Os"te*o*plas`ty, n. Etym: [Osteo- + -plasty.] (Med.)

Defn: An operation or process by which the total or partial loss of a bone is remedied. Dunglison.

OSTEOPOROSIS
Os`te*o*po*ro"sis, n. [NL.; osteo- + Gr. pore.] (Med. & Physiol.)

Defn: An absorption of bone so that the tissue becomes unusually porous.

OSTEOPTERYGIOUS
Os`te*op`ter*yg"i*ous, a. Etym: [Osteo- Gr. (Zoöl.)

Defn: Having bones in the fins, as certain fishes.

OSTEOSARCOMA Os`te*o*sar*co"ma, n.; pl. Osteosarcomata. Etym: [NL. See Osteo-, and sarcoma.] (Med.)

Defn: A tumor having the structure of a sacroma in which there is a deposit of bone; sarcoma connected with bone.

OSTEOSCLEROSIS
Os`te*o*scle*ro"sis, n. [NL.; osteo- + sclerosis.]

Defn: Abnormal hardness and density of bone.