tumour

English

Etymology

From Old French tumour, from Latin tumor (“swelling”), from tumeō (“I bulge, swell”).

Noun

tumour (plural tumours)

1. (oncology, pathology) An abnormal growth; differential diagnosis includes abscess, metaplasia, and neoplasia.

Usage notes

Tumour is the favoured spelling throughout the English-speaking world with the exception of the United States, where tumor is standard.

Derived terms

• tumourigenesis

Translations

tumor — see tumor

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Old French

Alternative forms

• tumeur

Etymology

Borrowing from Latin tumor.

Noun

tumour f (oblique plural tumours, nominative singular tumour, nominative plural tumours)

1. tumor (abnormal swelling of an animal's living tissue)
   • 1288, Somme Me Gautier

     Tumour ou enflour

Descendants

• English: tumor, tumour (borrowed)
• French: tumeur