phototaxis
Also found in: Medical, Encyclopedia, Wikipedia.
Related to phototaxis: negative phototaxis, positive phototaxis
pho·to·tax·is
(fō′tō-tăk′sĭs)n.
The movement of an organism or a cell toward or away from a source of light.
pho′to·tac′tic (-tăk′tĭk) adj.
pho′to·tac′ti·cal·ly adv.
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.
phototaxis
(ˌfəʊtəʊˈtæksɪs) orphototaxy
n
(Biology) the movement of an entire organism in response to light
phototactic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
pho•to•tax•is
(ˌfoʊ təˈtæk sɪs)also pho′to•tax′y,
n.
movement of an organism toward or away from a source of light.
[1900–05]
pho`to•tac′tic (-ˈtæk tɪk) adj.
pho`to•tac′ti•cal•ly, adv.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
phototaxis, phototaxy
the movement of an organism away from or toward a source of light. — phototactic, adj.
See also: Lightthe movement of an organism away from or toward a source of light. — phototactic, adj.
See also: Motion-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.