Dictionary
thermoperiodism
noun ther·mo·pe·ri·od·ism \ˌthər-mō-ˈpir-ē-ə-ˌdi-zəm\
Definition of THERMOPERIODISM
: the sum of the responses especially of a plant to appropriately fluctuating temperatures
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First Known Use of THERMOPERIODISM
circa 1937
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