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dayside

American  
[dey-sahyd] / ˈdeɪˌsaɪd /

noun

  1. Journalism. the day shift of a newspaper.

  2. Astronomy. the side of a planet or moon illuminated by the sun.


Etymology

Origin of dayside

First recorded in 1960–65; day + side 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

A global magma ocean might move some heat from the dayside toward the nightside, but without an atmosphere the permanently dark side would solidify, limiting how much energy could be redistributed.

From Science Daily Dec. 14, 2025

CNN on Monday announced its new programming lineup, which includes new roles for both veteran and up-and-coming anchors spanning the morning, dayside, primetime and weekend dayparts.

From Salon Aug. 14, 2023

The enormous dayside temperatures may mean this half of the planet is covered in a magma ocean.

From Scientific American Dec. 2, 2021

Its dayside temperatures should soar toward 2,700 degrees Fahrenheit, hot enough to melt rock and metal, making it a potential lava world, Dr. Lam added.

From New York Times Dec. 2, 2021

It was near the dusk of the 485-hour Venerian day, and the Twilight Gale already had arisen, sweeping from the comparatively chill Venerian nightside into the superheated dayside.

From Wind by Charles Louis Fontenay

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