thermoperiodicity: Meaning and Definition of

ther•mo•pe•ri•o•dic•i•ty

Pronunciation: (thûr"mō-pēr"ē-u-dis'i-tē), [key]
— n. Biol.
  1. the effect on an organism of rhythmic fluctuations in temperature.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.