-oma

n. forming nouns denoting tumours and other abnormal growths (carcinoma).
Etymology: mod.L f. Gk -oma suffix denoting the result of verbal action

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pl. -omas, -omata.

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

[prob. extracted from CARCINOMA or SARCOMA]

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-oma /-ō-mə/

n combining form (pl -ōˈmas or -ōˈmata)

Denoting a tumour, abnormal growth, etc, as in carcinoma, angioma, glioma, etc

ORIGIN: Gr ending of nouns formed from verbs with infinitive -oun

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OMA «OH muh», noun.

U.S. Orderly Marketing Agreement (an agreement between governments that restricts imports of a product when it jeopardizes employment, production, and sales of the importing country's industry): »

The Administration has negotiated an OMA limiting imports of Japanese color-TV sets to 41% of their 1976 level (Time).

-oma,

suffix, plural -omas or -omata.

a growth, as a tumor or neoplasm, as in adenoma, carcinoma.

╂[< Greek -ōma, a noun suffix]

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suffix (forming nouns) denoting tumors and other abnormal growths

carcinoma

Origin:

modern Latin, from a Greek suffix denoting the result of verbal action

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-oma

terminal element repr. Gr. -ωµα, in which ω repr. ω (or ο) in the parent word (usu. a vb.) and -µα is a Gr. suffix forming neut. ns., exemplified in Eng. words adopted from the Gr. such as carcinoma, coloboma, derma, diploma, eczema, glaucoma, phyma, plasma, sarcoma, trachoma, and in words on Gr. analogy such as lipoma. In Bot. -oma has usu. been anglicized to -ome. In Med. the examples of sarcoma (17th c. in English) and carcinoma (18th c.) have been taken as types on which to base new names of neoplasms and other localized swellings, -oma († -ome) being used as a suffix denoting ‘tumour, growth’ (cf. also Gr. ὄγκωµα swelling): e.g. fibroma († fibrome), cementoma, oligodendroglioma, tuberculoma († tuberculome).