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cislunar

American  
[sis-loo-ner] / sɪsˈlu nər /

adjective

Astronomy.
  1. of or relating to the space between the earth and the orbit of the moon.


cislunar British  
/ sɪsˈluːnə /

adjective

  1. of or relating to the space between the earth and the moon Compare translunar

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of cislunar

First recorded in 1865–70; cis- + lunar

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.

"Their activities include the development of space tourism, investments in lunar surface habitation and mining, research and development in space manufacturing and assembly, new cislunar orbits and satellite internet constellations."

From Salon • Dec. 13, 2023

That way the outpost can have an extended lifetime in cislunar space.

From The Verge • Feb. 3, 2022

The commission report warned that China wants to dominate the zone between the Earth and the moon, known as cislunar space, as part of what the ruling Communist Party of China calls the “Space Dream.”

From Washington Times • Nov. 24, 2019

“In the near term, within five years, and absent extreme risk aversion, a cislunar gateway has no military significance,” Pike said.

From Scientific American • Sep. 30, 2018

Talk of cislunar military operations depends on the time frame and one’s risk aversion, said John Pike, director of Virginia-based GlobalSecurity.org.

From Scientific American • Sep. 30, 2018

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