Skip to Content


Pronunciation: ter'i-to're-al'i-te


  1. The tendency of individuals or groups to defend a particular domain or sphere of interest or influence.
  2. The tendency of an individual animal to define a finite space as its own habitat from which it will fight off trespassing animals of its own species.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

Medical Disclaimer