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degree day

 - 1 dictionary result

de⋅gree-day

[di-gree-dey]
–noun Engineering.
one degree of departure, on a single day, of the daily mean temperature from a given standard temperature. Abbreviation: dd
Also, degree day.


Origin:
1925–1930
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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