noncarcinogen
noun
non·car·cin·o·gen ˌnän-kär-ˈsi-nə-jən 
-ˈkär-sə-nə-ˌjen
: 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
ˌnän-ˌkär-sə-nō-ˈje-nik
adjective noncarcinogenic chemicals
Word History
First Known Use
1942, in the meaning defined above
Medical Definition
noncarcinogen
noun
non·car·cin·o·gen -kär-ˈsin-ə-jən, -ˈkärs-ᵊn-ə-ˌjen
: a noncarcinogenic substance or agent