geotropic

[jee-oh-trop-ik, -troh-pik]
adjective Biology.
of, pertaining to, or exhibiting geotropism.

Origin:
1870–75; geo- + -tropic

geotropically, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To geotropic
Collins
World English Dictionary
geotropism (dʒɪˈɒtrəˌpɪzəm)
 
n
the response of a plant part to the stimulus of gravity. Plant stems, which grow upwards irrespective of the position in which they are placed, show negative geotropism
 
geotropic
 
adj
 
geo'tropically
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Science Dictionary
geotropism   (jē-ŏt'rə-pĭz'əm)  Pronunciation Key 
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.
Cite This Source
Example sentences
Living things that are sensitive to gravity are said to be geotropic.
Selection for geotropic root elongation rate in alfalfa under field conditions.
Related Words
Related Searches
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature