thermoperiodicity

[ thur-moh-peer-ee-uh-dis-i-tee ]
/ ˌθɜr moʊˌpɪər i əˈdɪs ɪ ti /

noun Biology.

the effect on an organism of rhythmic fluctuations in temperature.
Also ther·mo·pe·ri·o·dism [thur-moh-peer-ee-uh-diz-uh m] /ˌθɜr moʊˈpɪər i əˌdɪz əm/.

Origin of thermoperiodicity

First recorded in 1940–45; thermo- + periodicity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019