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Added 9 October 2026

tumor

/tjuː.mə/ noun

In Latin: tumor Wiktionary

noun Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about tumor at Wordnik → Where our words come from →

An abnormal growth; differential diagnosis includes abscess, metaplasia, and neoplasia.
a benign tumor

Origin

From Middle English tumour, from Old French tumour, from Latin tumor (“swelling”), from tumeō (“bulge, swell”, verb), from Proto-Italic *tumēō, from Proto-Indo-European *tewh₂- (“to swell”). Related to English thumb.

From Wiktionary, via Kaikki.org (CC BY-SA)

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