[bahy-oh-ree-juh n]


a place, locale, or area that constitutes a natural ecological community.

Nearby words

  1. biopsy,
  2. biopsychic,
  3. biopsychology,
  4. bioreactor,
  5. bioreagent,
  6. bioregionalism,
  7. bioremediation,
  8. bioresearch,
  9. bioreserve,
  10. biorhythm

Origin of bioregion

First recorded in 1980–85; bio- + region

Related formsbi·o·re·gion·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science definitions for bioregion



An area constituting a natural ecological community with characteristic flora, fauna, and environmental conditions and bounded by natural rather than artificial borders.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.