heliotropic

Variant of heliotropism

noun

any positive, or negative, turning or bending of a plant or sessile animal toward, or away from, light, esp. sunlight

Origin: helio- + -tropism

Related Forms:

Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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