phototaxis

noun
pho·​to·​tax·​is | \ ˌfō-tō-ˈtak-səs How to pronounce phototaxis (audio) \

Definition of phototaxis

: a taxis in which light is the directive factor

First Known Use of phototaxis

circa 1889, in the meaning defined above

History and Etymology for phototaxis

New Latin

Keep scrolling for more

Learn More about phototaxis

Statistics for phototaxis

Look-up Popularity

Time Traveler for phototaxis

The first known use of phototaxis was circa 1889

See more words from the same year

Keep scrolling for more

More Definitions for phototaxis

phototaxis

noun
pho·​to·​tax·​is | \ -ˈtak-səs How to pronounce phototaxis (audio) \
plural phototaxes\ -​ˌsēz How to pronounce phototaxes (audio) \

Medical Definition of phototaxis

: a taxis in which light is the directive factor

More from Merriam-Webster on phototaxis

Rhyming Dictionary: Words that rhyme with phototaxis

Comments on phototaxis

What made you want to look up phototaxis? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to make a payment or contribution

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time traveler quiz which word came first
  • Which came first?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!