noun Chemistry.
- any of a series of compounds with the type formula R2NNO, some of which are carcinogenic, formed in cured meats by the conversion of nitrite.
noun
- any one of a class of neutral, usually yellow oily compounds containing the divalent group =NNO
n.
- Any of a class of organic compounds present in various foods and other products and found to be carcinogenic and mutagenic in laboratory animals.
- Any of a class of organic compounds with the general formula R2NNO or RNHNO, where R is an organic radical. Nitrosamines are present in various foods and other products, and certain ones are very carcinogenic.