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hydrotropism definition

hy·drot·ro·pism (hī drä′trə piz′əm)

noun

the positive, or negative, movement or growth, as of a plant root, toward, or away from, moisture

Etymology: hydro- + -tropism

Related Forms:

  • hydrotropic hy′dro·trop′ic (hī′drə träp′ik) adjective

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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