- thermoperiodicity
- noun
see thermoperiodism
* * *
/therr'moh pear'ee euh dis"i tee/, n. Biol.the effect on an organism of rhythmic fluctuations in temperature.Also, thermoperiodism /therr'moh pear"ee euh diz'euhm/.[1940-45; THERMO- + PERIODICITY]
Useful english dictionary. 2012.