Tumour

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Commonwealth standard spelling of tumor.
  2. 2
    an abnormal new mass of tissue that serves no purpose wordnet

Synonyms

All synonyms
neoplasmtumortumor

Example

More examples

"The hospital has been sued as a result of a glaring oversight when doctors failed to notice a large tumour in a woman's X-ray."

Etymology

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

Related phrases

Wilms tumourWilms' tumourbrain tumourdifferential diagnosis

More for "tumour"

SynonymsSentencesPronunciationTranslate

Next best steps

Find stronger synonymsSee usage examplesCheck pronunciationBrowse writing guides

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.