Wiktionary
nitrosamine
n. 1 (context chemistry English) a divalent functional group, >N.N=O 2 (context chemistry English) any of a class of organic compounds containing this group; prepared by the reaction of amines with nitrites; they are carcinogenic
Wikipedia
Nitrosamine
Nitrosamines are chemical compounds of the chemical structure RN(–R)–N=O, that is, a nitroso group bonded to an amine. Most nitrosamines are carcinogenic.
Usage examples of "nitrosamine".
He had read that Coors was anti-carcinogenic—it had no nitrosamines, or something—and so he drank it constantly.