a combining form used in the names of chemical compounds in which the amino group is present: aminobenzene.
Also -amine; especially before a vowel, amin-.

Origin of amino- Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for amino-


combining form

indicating the presence of an amino groupaminobenzoic acid

Word Origin for amino-

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

Medical definitions for amino-



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.