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thermotropism definition

ther·mot·ro·pism (t̸hər mä′trə piz′əm)

noun

Biol. any positive, or negative, movement or growth of a plant or sessile animal toward, or away from, a source of heat

Etymology: thermo- + -tropism

Related Forms:

  • thermotropic ther′mo·trop′ic (t̸hʉr′mə träp′ik) adjective

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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