Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Chemistry Characterized by or causing the absorption of heat; endoergic.
  • adj. Biology Of or relating to an organism that generates heat to maintain its body temperature, typically above the temperature of its surroundings; warm-blooded.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of a chemical reaction that absorbs heat energy from its surroundings.
  • adj. Of an animal whose body temperature is regulated by internal factors.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Designating, or pert. to, a reaction which occurs with absorption of heat; formed by such a reaction; ; -- opposed to exothermic.

from The Century Dictionary and Cyclopedia

  • Relating to absorption of heat.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. (of a chemical reaction or compound) occurring or formed with absorption of heat

Etymologies

From endo- (“inside”) +‎ thermic (“of heat”). (Wiktionary)

Examples

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