non·​car·​cin·​o·​gen ˌnän-kär-ˈsi-nə-jən How to pronounce noncarcinogen (audio)
: something that is not known to cause cancer : a substance or agent that is not a carcinogen
studied the effects of noncarcinogens on overall health
noncarcinogenic adjective
noncarcinogenic chemicals

Word History

First Known Use

1942, in the meaning defined above

Time Traveler
The first known use of noncarcinogen was in 1942

Dictionary Entries Near noncarcinogen

Cite this Entry

“Noncarcinogen.” Dictionary, Merriam-Webster, Accessed 29 May. 2024.

Medical Definition


non·​car·​cin·​o·​gen -kär-ˈsin-ə-jən, -ˈkärs-ᵊn-ə-ˌjen How to pronounce noncarcinogen (audio)
: a noncarcinogenic substance or agent
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