[ am-fuh-ter-ik ]
/ ˌæm fəˈtɛr ɪk /

adjective Chemistry.

capable of functioning either as an acid or as a base.

Origin of amphoteric

1840–50; < Greek amphóter(os) (comparative of ámphō both; cognate with Latin ambō) + -ic Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for amphoteric

British Dictionary definitions for amphoteric


/ (ˌæmfəˈtɛrɪk) /


chem able to function as either a base or an acidAlso: amphiprotic

Word Origin for amphoteric

C19: from Greek amphoteros each of two (from amphō both) + -ic
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

Medicine definitions for amphoteric


[ ăm′fə-tĕrĭk ]


Having the capacity to react as either an acid or a base.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for amphoteric


[ ăm′fə-tĕrĭk ]

Capable of reacting chemically as either an acid or a base. Water, ammonia, and the hydroxides of certain metals are amphoteric.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.