noncancerous

adjective

non·​can·​cer·​ous ˌnän-ˈkan(t)s-rəs 

-ˈkan(t)-sə-

: not affected with or being cancer

noncancerous patients

noncancerous tumors

Examples of noncancerous in a Sentence

Recent Examples on the Web

Researchers have proposed several explanations, such as the fact that Black women have higher rates of fibroids—noncancerous growths that can interfere with embryo implantation, the delicate process by which an embryo burrows into the uterine lining and stays there. —Sarah Elizabeth Richards, Scientific American, 2 Apr. 2026

While 90% of the tumors had microplastics, 70% of noncancerous samples did, too. —Erika Edwards, NBC news, 2 Apr. 2026

Most lumps such as these are noncancerous lipomas, or fatty tumors, and a decision on whether to remove them is based on whether the lumps interfere with movements or threaten other issues. —Joan Morris, Mercury News, 16 Mar. 2026

Michelle underwent successful surgery Thursday to remove a noncancerous tumor from her head. —Jeff Vorva, Chicago Tribune, 18 Feb. 2026

Word History

First Known Use

1918, in the meaning defined above

Rhymes for noncancerous

• precancerous
• cancerous

Medical Definition

noncancerous

adjective

non·​can·​cer·​ous -ˈkan(t)s-(ə-)rəs 

variants or non-cancerous

: not affected with or being cancer : not cancerous

noncancerous patients

noncancerous tumors