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[ter-i-tawr-ee-al-i-tee, -tohr-] /ˌtɛr ɪˌtɔr iˈæl ɪ ti, -ˌtoʊr-/
territorial quality, condition, or status.
the behavior of an animal in defining and defending its territory.
attachment to or protection of a territory or domain.
Origin of territoriality
1890-95; territorial + -ity
Related forms
nonterritoriality, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for territoriality
  • The latter must be treated with extreme caution, as bull sharks are noted for their aggression and territoriality.
  • No matter what the species, it probably engages in some form of territoriality.
  • And she managed to do it without the self-righteous territoriality that is the occupational vice of human-rights experts.
  • Among the research areas explored are small group ecology, territoriality, and the related concept of privacy.
British Dictionary definitions for territoriality


the state or rank of being a territory
the behaviour shown by an animal when establishing and defending its territory
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
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Word Origin and History for territoriality

1839, as a concept in international law, from territorial + -ity.

Online Etymology Dictionary, © 2010 Douglas Harper
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territoriality in Medicine

territoriality ter·ri·to·ri·al·i·ty (těr'ĭ-tôr'ē-āl'ĭ-tē)

  1. A behavior pattern in animals consisting of the occupation and defense of a territory.

  2. A similar behavior pattern in humans consisting of the tendency to defend a particular domain or sphere of influence or interest.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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territoriality in Science
A behavior pattern in animals consisting of the occupation and defense of a territory.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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