[ en-gram ]
/ ˈɛn græm /


a presumed encoding in neural tissue that provides a physical basis for the persistence of memory; a memory trace.

Origin of engram

First recorded in 1905–10; en-2 + -gram1
Also called trace.


en·gram·mic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for engram

  • Similarly, the engram of the ecphoriated dichotomy is most often that which has been previously most often repeated.

    The Sexual Question|August Forel
  • As we have indicated in our comparison, every suggestion which has succeeded leaves a strong trace, or engram, in the brain.

    The Sexual Question|August Forel
  • These two laws together represent in part a hypothesis (the engram), and in part an observable fact.

    The Analysis of Mind|Bertrand Russell
  • Semon's "engram" is formed by all that we experience at one time.

    The Analysis of Mind|Bertrand Russell

British Dictionary definitions for engram

/ (ˈɛnɡræm) /


psychol the physical basis of an individual memory in the brainSee also memory trace

Derived forms of engram

engrammic or engrammatic, adjective

Word Origin for engram

C20: from German Engramm, from Greek en- in + gramma letter
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 engram

[ ĕngrăm′ ]


A physical alteration thought to occur in living neural tissue in response to stimuli, posited as an explanation for memory.neurogram
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.