Meanings
plural tumours
- medicineCommonwealth standard spelling of tumor.
At this time, and at another occasion when she feared she had a brain tumour, she “consulted Dr Google”.
2025 June 3, Nino Bucci, “Erin Patterson accepts beef wellington served at fatal lunch contained death cap mushrooms, triple murder trial hears”, in The Guardian, →ISSN, archived from the original on 08 Aug 2025
Synonyms & antonyms
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
- Proto-Indo-European*tewh₂-“to swell”
- Latintumor“swelling”
- Old Frenchtumour
- Middle Englishtumour
- Englishtumour
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.
More words from Middle English, Old French, Latin
Full word history & related roots →Cite this entry
tumour. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/tumour
“tumour.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/tumour. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “tumour,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/tumour.
Source: tumour on Wiktionary, CC BY-SA 4.0.