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Definition for OMA (2 of 2)


plural -omas, -omata.

a noun suffix used to form names of tumors, of the kind specified by the base: fibroma; melanoma.

Origin of -oma

Probably extracted from carcinoma or sarcoma
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021


What does -oma mean?

The suffix –oma is used to name tumors. The suffix -oma is used in many medical terms, especially in pathology.

The suffix -oma is probably taken from words like sarcoma and carcinoma. Sarcoma comes from the Greek sárkōma, meaning “fleshy growth,” and carcinoma from the Greek, karkínōma, “sore, ulcer, cancer.”

When used in the plural, -oma can be either -omas or -omata, as in lipomas or lipomata.

What are variants of -oma?

Especially in biology terms, the suffix -oma becomes -ome, as in rhizome, and indicates a mass or specific kind of part.

Examples of -oma

One example of a medical term you may be familiar with that features the suffix -oma is fibroma, “a tumor consisting essentially of fibrous tissue.”

The first part of the word, fibr-, is a combining form meaning “fiber.” The suffix -oma denotes “tumor.” Fibroma literally translates to “fibrous tumor.”

What are some words that use the suffix –oma?

What are some other forms that -oma may be commonly confused with?

Break it down!

In medicine, the combining forms lipo- and lip- mean “fat.” What kind of tissue does a lipoma consist of?

British Dictionary definitions for OMA


n combining form

indicating a tumourcarcinoma
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

Medical definitions for OMA



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

Scientific definitions for OMA


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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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