nightside

noun

night·​side ˈnīt-ˌsīd 

: the side of a celestial body (such as the earth, the moon, or a planet) not in daylight

Examples of nightside in a Sentence

Recent Examples on the Web

The variations in brightness result because sometimes the nightside of the planet faces us, and other times our instruments see its dayside. — Robert Lea, Space.com, 26 Aug. 2026

Clouds That Form And Vanish Daily Scientists believe the clouds form on the planet's cooler nightside before circulating toward the dayside via powerful atmospheric winds. — Jamie Carter, Forbes.com, 21 May 2026

And somewhat unsurprisingly, JWST’s observations suggest these two halves are extremely different, with the planet’s morning dayside edge overcast with puffy clouds while the nightside’s evening edge is almost cloud-free. — K. R. Callaway, Scientific American, 21 May 2026

Another photo shows the nightside of the whole Earth, featuring the Sun’s halo, auroras and city lights. — Christye Sisson, The Conversation, 13 Apr. 2026

Word History

First Known Use

1848, in the meaning defined above

Rhymes for nightside

• abide
• allied
• applied
• aside
• astride
• azide
• backside
• bankside
• bastide
• bayside
• bedside
• belied