geotaxis(redirected from geotactical)
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Movement of a motile organism using the earth's gravity for orientation.
ge′o·tac′tic (-tĭk) 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.
(Biology) movement of an organism in response to the stimulus of gravity
ˌgeoˈtactic, ˌgeoˈtactical adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ge•o•tax•is(ˌdʒi oʊˈtæk sɪs)
oriented movement of a motile organism toward or away from a gravitational force.
ge`o•tac′tic (-tɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
the movement of an organism in response to the force of gravity.See also: Gravity, Motion
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.