[ hee-lee-uh-trop-ik, -troh-pik ]
/ ˌhi li əˈtrɒp ɪk, -ˈtroʊ pɪk /

adjective Biology.

turning or growing toward the light.

Origin of heliotropic

First recorded in 1870–75; helio- + -tropic

Related forms

he·li·o·trop·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for heliotropic

Science definitions for heliotropic


[ hē′lē-ŏtrə-pĭz′əm ]

The growth or movement of a fixed organism, especially a plant, toward or away from sunlight. Heliotropism can be easily seen in sunflowers, which slowly turn their large flowers so that they continually face the sun.

Related forms

heliotropic adjective (hēl′lē-ə-trōpĭk, -trŏpĭk)
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