[ am-ahyd, -id ]

  1. a metallic derivative of ammonia in which the −NH2 group is retained, as potassium amide, KNH2.

  2. an organic compound obtained by replacing the −OH group in acids by the −NH2 group.

  1. an organic compound formed from ammonia by replacing a hydrogen atom by an acyl group.

Origin of amide

First recorded in 1840–50; am(monia) + -ide

Other words from amide

  • a·mid·ic [uh-mid-ik], /əˈmɪd ɪk/, adjective

Words Nearby amide Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use amide in a sentence

British Dictionary definitions for amide


/ (ˈæmaɪd) /

  1. any organic compound containing the functional group -CONH 2

  2. (modifier) consisting of, containing, or concerned with the group -CONH 2: amide group or radical

  1. an inorganic compound having the general formula M(NH 2) x, where M is a metal atom

Origin of amide

C19: from am (monia) + -ide

Derived forms of amide

  • amidic (əˈmɪdɪk), adjective

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

Scientific definitions for amide


[ ămīd′ ]

  1. Any organic compound containing the group CONH2, derived from a fatty acid by replacing the hydroxyl group (OH) of the carboxyl group (COOH) with an amino group (NH2). Amides are volatile solids.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.