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tumor

nouncommon in dialogue

  • United Kingdom//tjuː.mə//
  • United Kingdom//tɪʊ̯.məɾ//
  • United States//tuː.məɹ//

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

noun

  1. 1

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

    a benign tumor

    a malignant tumor

    brain tumor

    identify tumor

Etymology

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.

Forms

plural
tumors
The neighbouring pagesAlphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.

Lexical content from Wiktionary, under CC BY-SA 4.0 · Source entry · Data version 2026-08-23

Rank among the words of the OpenSubtitles 2018 corpus — film and television subtitles, so spoken rather than written usage (CC BY-SA 3.0).