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The Collaborative International Dictionary
Osteosarcoma

Osteosarcoma \Os`te*o*sar*co"ma\, n.; pl. Osteosarcomata. [NL. See Osteo-, and sarcoma.] (Med.) A tumor having the structure of a sarcoma in which there is a deposit of bone; sarcoma connected with bone.

Wiktionary
osteosarcoma

n. A type of cancer of the bone

WordNet
osteosarcoma

n. malignant bone tumor; most common in children and young adults where it tends to affect the femur [syn: osteogenic sarcoma]

Wikipedia
Osteosarcoma

An osteosarcoma is a cancerous tumor in a bone. Specifically, it is an aggressive malignant neoplasm that arises from primitive transformed cells of mesenchymal origin (and thus a sarcoma) and that exhibits osteoblastic differentiation and produces malignant osteoid.

Osteosarcoma is the most common histological form of primary bone cancer. It is most prevalent in children and young adults.

Usage examples of "osteosarcoma".

It morphs from a translucent copy of Amber's own body into the outline of a human skeleton, elaborate bony extensions simulating an osteosarcoma of more-than-lethal proportions.