a warm-blooded animal.

Nearby words

  1. endothelial myeloma,
  2. endothelioid,
  3. endothelioma,
  4. endotheliosis,
  5. endothelium,
  6. endothermic,
  7. endothoracic fascia,
  8. endothrix,
  9. endotoxemia,
  10. endotoxicosis

Origin of endotherm

First recorded in 1945–50; endo- + -therm

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for endotherm




An organism that generates heat to maintain its body temperature, typically above the temperature of its surroundings; a homeotherm.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for endotherm



A warm-blooded organism. Also called homeotherm
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.