Found 2 items, similar to heliotropism.
English → English (WordNet) Definition: heliotropism heliotropism n : an orienting response to the sun
English → English (gcide) Definition: Heliotropism Heliotropism \He`li*ot"ro*pism\, n. [Helio- + Gr. ? to turn.] (Bot.) The phenomenon of turning toward the light, seen in many leaves and flowers. [1913 Webster]