Definition of nightside
: the side of a celestial body (such as the earth, the moon, or a planet) not in daylight
Recent Examples of nightside from the Web
The flyby spacecraft would reach periapsis 700 kilometers above a point near the equator at the center of Venus’s nightside.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nightside'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of nightside
Learn More about nightside
Seen and Heard
What made you want to look up nightside? Please tell us where you read or heard it (including the quote, if possible).