a combining form used in the names of chemical compounds in which the −NH2 group united with an acid radical is present: amidocyanogen.
Also especially before a vowel, amid-.
Origin of amido-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(in chemistry) indicating the presence of an amide group
Word Origin for amido-
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