noun
tumor
tyoo-muh
noun
1
(American spelling) An abnormal mass of tissue that grows in the body, which may be benign or cancerous.
"The scan revealed a small tumor that doctors wanted to monitor closely."
How to Use Tumor
Learner’s notesIn plain EnglishAn abnormal lump or growth of tissue in the body.
UK vs US
"Tumor" is the American spelling; British English uses "tumour."
Easily confused with
Word Forms
tumors plural
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The scan revealed a small _____ that doctors wanted to monitor closely.
Etymology
From Latin tumor ("a swelling"), from tumēre ("to swell") — a distant relative of the English word "thumb."