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a combining form used in the names of chemical compounds in which the amino group is present:
Also, -amine; especially before a vowel, amin-.
Origin of amino- Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for amino-


combining form
indicating the presence of an amino group: aminobenzoic acid
Word Origin
from amine
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for amino-

1887, as an element in compound words involving chemicals, from comb. form of amine. Amino acid is attested from 1898.

Online Etymology Dictionary, © 2010 Douglas Harper
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amino- in Medicine

amino- pref.
Containing the radical NH2 combined with a nonacid organic radical: aminobenzoic acid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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