heliotropism

noun
he·​li·​ot·​ro·​pism | \ˌhē-lē-ˈä-trə-ˌpi-zəm \

Definition of heliotropism 

: phototropism in which sunlight is the orienting stimulus

Other Words from heliotropism

heliotropic \ ˌhē-​lē-​ə-​ˈtrō-​pik , -​ˈträ-​ \ adjective

First Known Use of heliotropism

circa 1854, in the meaning defined above

Keep scrolling for more

Learn More about heliotropism

Share heliotropism

Statistics for heliotropism

Look-up Popularity

Time Traveler for heliotropism

The first known use of heliotropism was circa 1854

See more words from the same year

Keep scrolling for more

More Definitions for heliotropism

heliotropism

noun
he·​li·​ot·​ro·​pism | \ˌhē-lē-ˈä-trə-ˌpiz-əm \

Medical Definition of heliotropism 

: phototropism in which sunlight is the orienting stimulus

Other Words from heliotropism

heliotropic \ -​lē-​ə-​ˈtrōp-​ik , -​ˈträp-​ \ adjective

Comments on heliotropism

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

WORD OF THE DAY

something that serves to warn or remind

Get Word of the Day daily email!

Test Your Vocabulary

Autumn Words of the Day 2018

  • a-top-down-image-of-road-through-an-autumn-forest
  • Which is a synonym of fugacious?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Bee Cubed

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!