heliotropism

noun
he·​li·​ot·​ro·​pism | \ ˌhē-lē-ˈä-trə-ˌpi-zəm How to pronounce heliotropism (audio) \

Definition of heliotropism

: phototropism in which sunlight is the orienting stimulus

Other Words from heliotropism

heliotropic \ ˌhē-​lē-​ə-​ˈtrō-​pik How to pronounce heliotropic (audio) , -​ˈträ-​ \ adjective

First Known Use of heliotropism

circa 1854, in the meaning defined above

Keep scrolling for more

Learn More about 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 How to pronounce heliotropism (audio) \

Medical Definition of heliotropism

: phototropism in which sunlight is the orienting stimulus

Other Words from heliotropism

heliotropic \ -​lē-​ə-​ˈtrōp-​ik How to pronounce heliotropic (audio) , -​ˈträp-​ How to pronounce heliotropic (audio) \ 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

showing great care, attention, and effort

Get Word of the Day daily email!

Test Your Vocabulary

Finance Words Quiz

  • a-piggy-bank
  • The etymology of mortgage is related most closely to which two words?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Syn City

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!