əˈmēn, ˈamə̇n noun
( -s )
Etymology: International Scientific Vocabulary am monium + -ine
1. : any of a class of basic compounds derived from ammonia by replacement of hydrogen by one or more univalent hydrocarbon radicals or other nonacidic organic radicals, being classed as primary, secondary, or tertiary according as one, two, or three atoms of ammoniacal hydrogen have been replaced — distinguished from imine ; compare quaternary ammonium compound
2. : a compound (as a chloramine) containing one or more halogen atoms attached to nitrogen