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dayside

[dey-sahyd]
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noun
  1. Journalism. the day shift of a newspaper.
  2. Astronomy. the side of a planet or moon illuminated by the sun.
Compare nightside.

Origin of dayside

First recorded in 1960–65; day + side1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018