Dictionary![]() ![]() a•minePronunciation: (u-mēn', am'in), [key] —n. Chem. any of a class of compounds derived from ammonia by replacement of one or more hydrogen atoms with organic groups. -aminevar. of amino- as final element of a compound word: Dramamine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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