heliotropism

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he·li·ot·ro·pism

 (hē′lē-ŏt′rə-pĭz′əm)
n.
Growth or orientation of a sessile organism, especially a plant, toward or away from the light of the sun.

he′li·o·tro′pic (-ə-trō′pĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

heliotropism

(ˌhiːlɪˈɒtrəˌpɪzəm) or

heliotropy

n
(Botany) the growth of plants or plant parts (esp flowers) in response to the stimulus of sunlight, so that they turn to face the sun
heliotropic, heliotropical adj
ˌhelioˈtropically adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

he•li•ot•ro•pism

(ˌhi liˈɒ trəˌpɪz əm, -əˈtroʊ pɪz-)

n.
heliotropic tendency or growth.
[1850–55]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

he·li·ot·ro·pism

(hē′lē-ŏt′rə-pĭz′əm)
The growth or movement of a fixed organism, especially a plant, toward or away from sunlight.

heliotropic (hēl′lē-ə-trō′pĭk, hēl′lē-ə-trŏp′ĭk) adjective
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

heliotropism

the tendency in some plant species to turn or grow toward sunlight. — heliotrope, n.heliotropic, adj.
See also: Plants
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.heliotropism - an orienting response to the sun
tropism - an involuntary orienting response; positive or negative reaction to a stimulus source
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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