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tumour

British  
/ ˈtjuːmə /

noun

  1. pathol

    1. any abnormal swelling

    2. a mass of tissue formed by a new growth of cells, normally independent of the surrounding structures

  2. obsolete pompous style or language

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of tumour

C16: from Latin, from tumēre to swell

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

While post-op pathology results revealed the inflammatory cancer was gone, it found cancer in 15 lymph nodes and a 1.8-centimetre grade three triple-negative tumour.

From BBC Jul. 28, 2026

Burrell was diagnosed in June 2022 with a glioblastoma, a highly aggressive brain tumour, which typically carries a life expectancy of 12-18 months.

From BBC Jul. 12, 2026

Last year, Laraine Chung discovered she had a tumour behind her left eye.

From BBC Jun. 18, 2026

It was not until last October that he revealed he had been diagnosed with a tumour a few days before the start of the race and had treatment before returning to competition.

From BBC Jun. 11, 2026

Not just because it’s Ashbury, although the place itself is bad enough, a 1960s new town, spreading like a tumour over the heart of Buckinghamshire.

From "The Girl on the Train" by Paula Hawkins

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