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cislunar
adjective
cis·lu·nar
(ˌ)sis-ˈlü-nər
: lying between the earth and the moon or the moon's orbit
cislunar space
Examples of cislunar in a Sentence
Recent Examples on the Web
The rocket will launch four NASA astronauts into space to begin a journey around the far side of the Moon on the Artemis II mission, the first flight of humans to cislunar space since the last Apollo mission in 1972.
—Stephen Clark, Ars Technica, 19 July 2024
That's enough to move from higher orbits to cislunar space and back.
—Eric Berger, Ars Technica, 30 Apr. 2024
Where will Coordinated Lunar Time be used? LTC will be used in operations in cislunar space, the region around the Earth that extends to the moon and past its orbit.
—George Petras, USA TODAY, 23 Apr. 2024
Engineers sought to protect satellites in Earth orbit and avoid creating additional debris in cislunar space, Astrobotic said.
—George Petras, USA TODAY, 20 Jan. 2024
That motive still exists in the U.S.-China rivalry, but now both countries are working toward building an enduring presence on the moon and in cislunar space, the real estate between the moon and Earth.
—Christian Davenport, Washington Post, 13 Nov. 2023
That interest is apparent: Last year, the Space Force identified cislunar operations as a development priority, and in April established the 19th Space Defense Squadron to oversee cislunar space.
—Denise Chow, NBC News, 22 Jan. 2023
The Space Force must grow significantly as the economic and military competition with China expands outward from low-earth and medium-earth orbits toward cislunar space.
—Jerry Hendrix, National Review, 17 Mar. 2022
As the name implies, DARPA envisions DRACO operating primarily in cislunar space, or the area of space between Earth and the moon.
—Kyle Mizokami, Popular Mechanics, 14 Apr. 2021
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Word History
First Known Use
circa 1877, in the meaning defined above
Dictionary Entries Near cislunar
Cite this Entry
“Cislunar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cislunar. Accessed 21 Dec. 2024.
Kids Definition
cislunar
adjective
cis·lu·nar
(ˈ)sis-ˈlü-nər
: lying between the earth and the moon or the moon's orbit
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