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2017 Word of the Year

thermoperiodicity

[thur-moh-peer-ee-uh-dis-i-tee] /ˌθɜr moʊˌpɪər i əˈdɪs ɪ ti/
noun, Biology.
1.
the effect on an organism of rhythmic fluctuations in temperature.
Also, thermoperiodism
[thur-moh-peer-ee-uh-diz-uh m] /ˌθɜr moʊˈpɪər i əˌdɪz əm/ (Show IPA)
.
Origin of thermoperiodicity
1940-1945
First recorded in 1940-45; thermo- + periodicity
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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