n.
Pronunciation: ˌ h ē -l ē - ' ä-tr ə - ˌ pi-z ə m
Function: noun
Date: circa 1854
: phototropism in which sunlight is the orienting stimulus
– he · lio · tro · pic \ -l ē - ə - ' tr ō -pik, - ' trä- \ adjective
n.
Pronunciation: ˌ h ē -l ē - ' ä-tr ə - ˌ pi-z ə m
Function: noun
Date: circa 1854
: phototropism in which sunlight is the orienting stimulus
– he · lio · tro · pic \ -l ē - ə - ' tr ō -pik, - ' trä- \ adjective
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012