-oma - Wiktionary

See also: Appendix:Variations of "oma"

English

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Etymology

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From Ancient Greek -ωμα (-ōma), from verbs in -όω (-óō) + -μα (-ma) (from Proto-Indo-European *-mn̥), which lengthens a preceding vowel.

Pronunciation

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• enPR: ō′mə
• (Received Pronunciation) IPA(key): /ˈəʊ.mə/
• (General American, Canada) IPA(key): /ˈoʊ.mə/
• (General Australian) IPA(key): /ˈəʉ.mə/
• (General Australian, New Zealand) IPA(key): /ˈɐʉ.mə/
• (Scotland) IPA(key): /ˈo.mə/
• (India) IPA(key): /ˈoː.mə/
• Hyphenation: -o‧ma

Suffix

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-oma (plural -omata or -omas)

1. (pathology) Forming nouns indicating disease or morbidity.
2. (pathology, specifically) Forming nouns indicating tumors or masses, which may be non-neoplastic or (more often) neoplastic, and (if the latter) either benign or malignant (cancerous); in accord with present-day understanding of histopathology, the suffix is now nonproductive for non-neoplastic senses. Synonyms: -cele, -coele

Usage notes

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• For most nouns formed with -oma, the plural in -omas is more common, because the suffix has been naturalized into English, but the plural in -omata is often preferred by people who believe that the Greek inflection needs to be retained.

Derived terms

[edit] English terms suffixed with -oma acanthoma acanthoma adenoides cysticum adamantinoma adenolipoma adenoma adipoma aldosteronoma ameboma amoeboma amyloidoma angioendothelioma angioleiomyoma angiolipoleiomyoma angiolipoma angioma angiosarcoma apudoma ascoma aspergilloma astroblastoma astrocytoma atheroma basalioma biloma blastoma branchioma carcinoma carcinosarcoma cavernoma cementoma cerebroma chagoma chloroma cholangiocarcinoma cholangioma chondroma chondrosarcoma chordoma chorioblastoma choriocarcinoma choristoma chromaffinoma collagenoma condyloma coproma craniopharyngioma cylindroma cystoma -cytomatous dacryoma deciduoma dentinoma dermatoma diktyoma dysembryoma dysgerminoma ecchondroma ecchymoma elastoma embryoma enameloma encephaloma enchondroma endometrioma endothelioma enterocystoma ependymoblastoma ependymoma epithelioma erythrocytoma esthesioneuroblastoma fascinoma fecaloma fibroblastoma fibrofolliculoma fibroma fibrosarcoma folliculoma gangliocytoma gastrinoma gauzoma germinoma glioblastoma glioma gliosarcoma glucagonoma gonadotropinoma granuloma gyroma haematoma hamartoma heloma hemangioblastoma hemangioendothelioblastoma hemangiopericytoma hemangiosarcoma hematoma hepatoblastoma hepatocarcinoma hepatoma hibernoma histiocytoma histoplasmoma hybridoma hygroma hypernephroma immunocytoma incidentaloma infundibuloma insulinoma scotomize keratoacanthoma keratoma leiomyoblastoma leproma leucoma lipoma liposarcoma lupoma luteoma lymphadenoma lymphangiosarcoma lymphocytoma lymphoepithelioma lymphoma lymphosarcoma malignoma MALToma mastocytoma medulloblastoma melanoma meningioma mesothelioma microscotoma muslinoma mycetoma myeloma myoma myxochondroma myxofibrosarcoma myxoma nephroma nesidioblastoma neurilemmoma neurinoma neuroblastoma neurofibroma neurolemmoma neuroma neurotensinoma odontoma oligoastrocytoma oligodendrocytoma oligodendroglioma onchocercoma oncocytoma oophoroma -omatosis osteoclastoma osteofibroma osteoma osteosarcoma papilloma paraffinoma paraganglioma pelioma phaeochromocytoma pheochromocytoma pilomatrixoma pinealoma pineoblastoma pineocytoma pituicytoma plasmacytoma polyoma poroma prolactinoma psammoma retinoblastoma rhabdomyoma rhinoscleroma sarcoma scatoma schwannoma scirrhoma scleroma scotoma scotomaphobia seminoma seroma somatostatinoma splenoma steatocystoma steatoma stercoroma synovioma syphiloma syringoma teratoma testiculoma

Translations

[edit] suffix forming nouns indicating disease or morbidity

Dutch: -oom (nl) Finnish: -ooma French: -ome (fr) m Irish: -óma m Latin: -ōma n (Contemporary Latin)

suffix forming nouns indicating tumors or masses

Catalan: -oma (ca) m Dutch: -oom (nl) Finnish: -ooma French: -ome (fr) m Irish: -óma m Latin: -ōma n (Contemporary Latin) Portuguese: -oma (pt) m Spanish: -oma (es)

Anagrams

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• MoA, Amo., MAO, moa, MOA, Amo, AMO, mao, AOM, Mao

Catalan

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Etymology

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Borrowed from Ancient Greek -ωμα (-ōma).

Pronunciation

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• IPA(key): (Central, Balearic) [ˈo.mə]
• IPA(key): (Valencia) [ˈo.ma]
• Hyphenation: -ó‧ma

Suffix

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-oma m (noun-forming suffix, plural -omes)

1. (pathology) -oma (forms the names of tumours or masses)

Derived terms

[edit] Catalan terms suffixed with -oma genoma insulinoma limfoma lipoma oligodendroglioma papil·loma seminoma

Further reading

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• “-oma”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2026

Italian

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Etymology

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Borrowed from Ancient Greek -ωμα (-ōma).

Pronunciation

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• IPA(key): /ˈɔ.ma/
• Rhymes: -ɔma
• Hyphenation: -ò‧ma

Suffix

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-oma m

1. (pathology) -oma (forms the names of tumours or masses)

Derived terms

[edit] Italian terms suffixed with -oma adenoma bioma blastoma cheratoma cistoma condroma dacrioma endotelioma glioma ideoma leucoma linfoma lipoma mesotelioma mioma neuroma osteoclastoma osteoma teratoma tricoma xantoma

Anagrams

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• amo, amò, moa

Polish

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Pronunciation

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• IPA(key): /ˈɔ.ma/
• Rhymes: -ɔma
• Syllabification: -o‧ma

Suffix

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-oma

1. feminine nominative/vocative singular of -omy

Portuguese

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Etymology

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Borrowed from Ancient Greek -ωμα (-ōma).

Pronunciation

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• (Brazil) IPA(key): /ˈõ.mɐ/

• (Brazil) IPA(key): /ˈõ.mɐ/
  • (Southern Brazil) IPA(key): /ˈo.ma/

• (Portugal) IPA(key): /ˈo.mɐ/

• Hyphenation: -o‧ma

Suffix

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-oma m (noun-forming suffix, plural -omas)

1. (pathology) -oma (forms the names of tumours or masses) ‎linfo- (“lympho”) + ‎-oma → ‎linfoma (“lymphoma”)
2. (chiefly biology) -ome (forms the names of masses or sets) ‎bio- (“bio-”) + ‎-oma → ‎bioma (“biome”)

Further reading

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• “-oma”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
• “-oma”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

Slovene

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Alternative forms

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• -ema

Etymology

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From Proto-Slavic *-omь or Proto-Slavic *-ъmь.

Suffix

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-oma

1. Denominal, forms adverbs depicting manner or way from nouns. See -ema for a variant. red (“order”) → redoma (“regularly”) namen (“intention”) → namenoma (“intentionally”) trud (“toughness”) → trudoma (“painstakinly”) večina (“majority”) → večinoma (“mostly”) načelo (“principle”) → načeloma (“in principle”)

Derived terms

[edit] Slovene terms suffixed with -oma načeloma namenoma

Spanish

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Etymology

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Borrowed from Ancient Greek -ωμα (-ōma).

Pronunciation

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• IPA(key): /ˈoma/ [ˈo.ma]
• Rhymes: -oma
• Syllabification: -o‧ma

Suffix

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-oma m (noun-forming suffix, plural -omas)

1. (pathology) -oma (forms the names of tumours or masses)

Derived terms

[edit] Spanish terms suffixed with -oma angioma aspergiloma astrocitoma cavernoma condroma conectoma endometrioma ependimoma fibroblastoma glioblastoma glucagonoma hematoma insulinoma linfoma lipoma melanoma mesotelioma mieloma neuroma oligodendroglioma papiloma sarcoma schwannoma seminoma teratoma

Further reading

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• “-oma”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025