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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.

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Screenwriter Russell T Davies has described the death of his husband to an aggressive brain tumour as his "greatest loss".

From BBC Jul. 29, 2026

Sophie Daniels was 16 when her father died in 2024 as a result of stage 4 glioblastoma, a highly aggressive brain tumour.

From BBC Jul. 29, 2026

Josh and Kelly are supporting a campaign calling on the Welsh government to increase investment, external into brain tumour research.

From BBC Jul. 28, 2026

"It totally blindsided me - I had a tumour the size of a tangerine which had a cyst attached to it," Kirsty said.

From BBC Jul. 1, 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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