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phototaxis
or pho·to·tax·y
[ foh-tuh-tak-sis ]
/ ˌfoʊ təˈtæk sɪs /
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This shows grade level based on the word's complexity.
noun Biology.
movement of an organism toward or away from a source of light.
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OTHER WORDS FROM phototaxis
pho·to·tac·tic [foh-tuh-tak-tik], /ˌfoʊ təˈtæk tɪk/, adjectivepho·to·tac·ti·cal·ly, adverbWords nearby phototaxis
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use phototaxis in a sentence
If it acts in a one-sided way, it causes the particular form of stimulation which we call phototaxis or heliotropism.
The Wonders of Life|Ernst Haeckel
British Dictionary definitions for phototaxis
phototaxis
phototaxy
/ (ˌfəʊtəʊˈtæksɪs) /
noun
the movement of an entire organism in response to light
Derived forms of phototaxis
phototactic (ˌfəʊtəʊˈtæktɪk), adjectiveCollins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for phototaxis
phototaxis
[ fō′tō-tăk′sĭs ]
n.
The movement of an organism or cell toward or away from a source of light.
Other words from phototaxis
pho′to•tac′tic (-tăk′tĭk) adj.The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.