[ahy-suh-ley-shuh n, is-uh-]


an act or instance of isolating.
the state of being isolated.
the complete separation from others of a person suffering from contagious or infectious disease; quarantine.
the separation of a nation from other nations by isolationism.
Psychoanalysis. a process whereby an idea or memory is divested of its emotional component.
Sociology. social isolation.

Origin of isolation

First recorded in 1825–35; isolate + -ion
Related formsan·ti-i·so·la·tion, adjectivepost·i·so·la·tion, adjectivere·i·so·la·tion, noun

Synonyms for isolation

2. See solitude. 3. segregation. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for isolation

Contemporary Examples of isolation

Historical Examples of isolation

British Dictionary definitions for isolation



the act of isolating or the condition of being isolated
(of a country, party, etc) nonparticipation in or withdrawal from international politics
  1. social separation of a person who has or is suspected of having a contagious diseaseCompare quarantine
  2. (as modifier)an isolation hospital
sociol a lack of contact between persons, groups, or whole societies
social psychol the failure of an individual to maintain contact with others or genuine communication where interaction with others persists
in isolation without regard to context, similar matters, etc
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 isolation

1800, noun of action from isolate, or else from French isolation, noun of action from isoler (see isolated).

Online Etymology Dictionary, © 2010 Douglas Harper

isolation in Medicine




The act of isolating or the state of being isolated.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.