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osteoma

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os⋅te⋅o⋅ma

[os-tee-oh-muh]
–noun, plural -mas, -ma⋅ta [-muh-tuh] . Pathology.
a benign tumor composed of osseous tissue.

Origin:
1840–50; oste- + -oma
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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os·te·o·ma   (ŏs'tē-ō'mə)   
n.   pl. os·te·o·mas or os·te·o·ma·ta (-mə-tə)
A benign tumor composed of bony tissue, often developing on the skull.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: os·te·o·ma
Pronunciation: "äs-tE-'O-m&
Function: noun
Inflected Form: plural os·te·o·mas or os·te·o·ma·ta /-m&t-&/
: a benign tumor composed of bone tissue
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

osteoma os·te·o·ma (ŏs'tē-ō'mə)
n. pl. os·te·o·mas or os·te·o·ma·ta (-mə-tə)
A benign tumor composed of bony tissue, often developing on the skull.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia

osteoma

small, often solitary bone tumour found mainly on bones of the skull. Osteomas usually appear in late childhood or young adulthood; they are often asymptomatic. They do not become malignant, and treatment (by excision) is necessary only if the tumour interferes with normal functioning.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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