Dictionary

heliotropism

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

Definition of HELIOTROPISM

:  phototropism in which sunlight is the orienting stimulus
he·lio·tro·pic \-lē-ə-ˈtrō-pik, -ˈträ-\ adjective

First Known Use of HELIOTROPISM

circa 1854
Medical Dictionary

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
he·lio·tro·pic \-lē-ə-ˈtrōp-ik, -ˈträp-\ adjective

Browse

Next Word in the Dictionary: HeliotropiumPrevious Word in the Dictionary: heliotropinAll Words Near: heliotropism
July 01, 2015
precarious Hear it
not certain, secure, or steady
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears