noun, plural sarcomas, sarcomata [sahr-koh-muh-tuh] . Pathology.
any of various malignant tumors composed of neoplastic cells resembling embryonic connective tissue.

1650–60; < Neo-Latin < Greek sárkōma fleshy growth. See sarc-, -oma

sarcomatoid, sarcomatous [sahr-koh-muh-tuhs, -kom-uh-] , adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
sarcoma (sɑːˈkəʊmə)
n , pl -mata, -mas
pathol a usually malignant tumour arising from connective tissue
[C17: via New Latin from Greek sarkōma fleshy growth; see sarco-, -oma]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

1650s, "fleshy excrescence," Medical L., from Gk. sarkoma "fleshy substance" (Galen), from sarkoun "to produce flesh, grow fleshy," from sarx (gen. sarkos) "flesh" (see sarcasm) + -oma. Meaning "harmful tumor of the connective tissue" first recorded 1804.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

sarcoma sar·co·ma (sär-kō'mə)
n. pl. sar·co·mas or sar·co·ma·ta (-mə-tə)
A malignant tumor arising from connective tissues.

sar·co'ma·toid' (-mə-toid') or sar·co'ma·tous (-təs) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
sarcoma   (sär-kō'mə)  Pronunciation Key 
Plural sarcomas or sarcomata (sär-kō'mə-tə)
A malignant tumor originating from mesodermal tissue, such as fat, muscle, or bone. Compare carcinoma.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica


tumour of connective tissue (also called mesodermal, or mesenchymal, cells). This form of cancer is relatively rare in adults but is one of the more common malignancies among children; it often spreads to other tissues in the body. Sarcomas are generally divided into bone and soft-tissue tumours, the latter being much less common. Because mesenchymal cells form a variety of mature tissues, tumours may have the characteristics of bone (osteosarcoma), cartilage (chondrosarcoma), muscle (myosarcoma), or blood vessels (angiosarcoma). The varieties overlap, and the name given to the sarcoma is taken from that of the most developed tissue contained within the tumour. The most common is osteosarcoma; this malignancy of immature bone (osteoid) was highly lethal before the use of anticancer drugs, which have increased the survival rate to about 90 percent. Specific chromosomal abnormalities are associated with some sarcomas.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
About a year and a half ago, kitty developed a sarcoma in her foot.
Sarcoma malignant tumors derived from connective tissue, or mesenchymal cells.
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