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thermoperiodicity

[thur-moh-peer-ee-uh-dis-i-tee]
noun Biology.
  1. the effect on an organism of rhythmic fluctuations in temperature.
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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. 2018

British Dictionary definitions for thermoperiodism

thermoperiodism

thermoperiodicity (ˌθɜːməʊˌpɪərɪəˈdɪsɪtɪ)

noun
  1. botany the response of a plant to cycles of temperature fluctuation
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Derived Formsthermoperiodic, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012