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-oma

plural -omas, -omata.
  1. a noun suffix used to form names of tumors, of the kind specified by the base: fibroma; melanoma.
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Origin of -oma

probably extracted from carcinoma or sarcoma
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for -oma

-oma

n combining form
  1. indicating a tumourcarcinoma
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Word Origin for -oma

from Greek -ōma
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for -oma

word-forming element, from Greek -oma, with lengthened stem vowel + -ma, suffix forming neuter nouns and nouns that indicate result of verbal action (equivalent of Latin -men); especially taken in medical use as "morbid growth, tumor," based on sarcoma, carcinoma.

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Online Etymology Dictionary, © 2010 Douglas Harper

-oma in Medicine

-oma

suff.
  1. Tumor:lipoma.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

-oma in Science

-oma

  1. A suffix meaning “tumor” or “cancer,” as in carcinoma. Often, the suffix is added to the name of the affected body part, as in lymphoma, cancer of the lymph tissue.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.