heliotaxis

[ hee-lee-oh-tak-sis ]
/ ˌhi li oʊˈtæk sɪs /

noun Biology.

movement of an organism toward or away from sunlight.

Origin of heliotaxis

First recorded in 1895–1900; helio- + -taxis

OTHER WORDS FROM heliotaxis

he·li·o·tac·tic [hee-lee-oh-tak-tik] /ˌhi li oʊˈtæk tɪk/, adjective

Words nearby heliotaxis

heliopolis, helios, helioscope, heliosphere, heliostat, heliotaxis, heliotherapy, heliotrope, heliotropic, heliotropin, heliotropism

British Dictionary definitions for heliotaxis

heliotaxis
/ (ˌhiːlɪəʊˈtæksɪs) /

noun

movement of an entire organism in response to the stimulus of sunlight

Derived forms of heliotaxis

heliotactic (ˌhiːlɪəʊˈtæktɪk), adjective