phototaxis
or pho·to·tax·y
[ foh-tuh-tak-sis ]
nounBiology.
movement of an organism toward or away from a source of light.
Origin of phototaxis
1Other words from phototaxis
- pho·to·tac·tic [foh-tuh-tak-tik], /ˌfoʊ təˈtæk tɪk/, adjective
- pho·to·tac·ti·cal·ly, adverb
Words Nearby phototaxis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
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), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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