Definition of "amine" []

• Any of a group of organic compounds of nitrogen, such as ethylamine, C2H5NH2, that may be considered ammonia derivatives in which one or more hydrogen atoms have been replaced by a hydrocarbon radical. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Taking up the volatile alkaloids, we find with regard to _conine_, first, that the action of methyl iodide shows it to be a secondary amine, that is, it restrains only one replaceable hydrogen atom of the original ammonia molecule."
• "Fluorescent probes detect reactive oxygen species by undergoing a chemical process called amine oxidation."
• "Others, such as amine quaternary derivates, which are intended to be used in very low concentrations, are difficult to mix m evenly."