This shows grade level based on the word's complexity.
phototaxis
or pho·to·tax·y
[ foh-tuh-tak-sis ]
/ ˌfoʊ təˈtæk sɪs /
Save This Word!
This shows grade level based on the word's complexity.
noun Biology.
movement of an organism toward or away from a source of light.
QUIZ
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
Meet Grammar CoachImprove Your Writing
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.