[per-sis-tuh ns, -zis-]
  1. the act or fact of persisting.
  2. the quality of being persistent: You have persistence, I'll say that for you.
  3. continued existence or occurrence: the persistence of smallpox.
  4. the continuance of an effect after its cause is removed.
Often per·sist·en·cy.

Origin of persistence

First recorded in 1540–50; persist + -ence
Related formsnon·per·sist·ence, nounnon·per·sist·en·cy, noun

Synonyms for persistence

1. See perseverance. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for non-persistence



  1. the quality of persisting; tenacity
  2. the act of persisting; continued effort or existence
  3. the continuance of an effect after the cause of it has stoppedpersistence of vision
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

Word Origin and History for non-persistence



1540s, from Middle French persistance, from persistant "lasting, enduring, permanent," from Latin persistentem (nominative persistens), present participle of persistere (see persist). Often spelled persistance 16c. Related: Persistency.

Online Etymology Dictionary, © 2010 Douglas Harper

non-persistence in Medicine


  1. Continuance of an effect after the cause is removed.
  2. Continuance of a part or organ, rather than having it disappear in an early stage of development.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.