Definitions of amine

1. One of a class of basic substances derived from ammonia by replacement of one or more hydrogen atoms by an alkyl or aryl group. Compare amide, in which an acyl group is attached to the nitrogen. Hydroxylamine and hydrazine, which are not an organic compounds, are also basic and may also be considered amines.

2. One of a class of strongly basic substances derived from ammonia by replacement of one or more hydrogen atoms by a basic atom or radical.

3. [ Greek] A nitrogen compound formed in plants, also produced by bacterial action on amino acids, a derivative from ammonia by hydrogen replacement.