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geotropic

[jee-oh-trop-ik, -troh-pik] /ˌdʒi oʊˈtrɒp ɪk, -ˈtroʊ pɪk/
adjective, Biology
1.
of, pertaining to, or exhibiting geotropism.
Origin
1870-1875
1870-75; geo- + -tropic
Related forms
geotropically, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for geotropic
  • Living things that are sensitive to gravity are said to be geotropic.
  • Selection for geotropic root elongation rate in alfalfa under field conditions.
geotropic in Science
geotropism
  (jē-ŏt'rə-pĭz'əm)   
The directional growth of an organism in response to gravity. Roots display positive geotropism when they grow downwards, while shoots display negative geotropism when they grow upwards. Also called gravitropism.

geotropic adjective (jē'ə-trō'pĭk, jē'ə-trŏp'ĭk)
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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