circumlunar
adjective
cir·cum·lu·nar
ˌsər-kəm-ˈlü-nər 
: revolving about or surrounding the moon
a circumlunar orbit
Examples of circumlunar in a Sentence
Recent Examples on the Web
With the circumlunar flight of Artemis II, and the prospect of landing astronauts on the lunar surface within a few years, humanity is preempting an era where the imprint of visiting the Moon would be erased from living memory.
—
Stephen Clark,
ArsTechnica,
25 Apr. 2026
The safe return marked the end of a 25-day lunar orbital mission, proving the flight-worthiness of the Orion spacecraft, which is expected to carry a crew of astronauts on a circumlunar journey during Artemis 2, in 2024.
—
Jeffrey Kluger,
Time,
11 Dec. 2022
Enlarge / Akiko and Dennis Tito are customers on SpaceX's second circumlunar mission aboard Starship.
—
Eric Berger,
Ars Technica,
12 Oct. 2022
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Stephen Clark,
ArsTechnica,
25 Apr. 2026
The safe return marked the end of a 25-day lunar orbital mission, proving the flight-worthiness of the Orion spacecraft, which is expected to carry a crew of astronauts on a circumlunar journey during Artemis 2, in 2024.
—
Jeffrey Kluger,
Time,
11 Dec. 2022
Enlarge / Akiko and Dennis Tito are customers on SpaceX's second circumlunar mission aboard Starship.
—
Eric Berger,
Ars Technica,
12 Oct. 2022
Cite this Entry
“Circumlunar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/circumlunar. Accessed 7 Jul. 2026.
Copy CitationKids Definition
circumlunar
adjective
cir·cum·lu·nar
ˌsər-kəm-ˈlü-nər
: revolving about or surrounding the moon
a circumlunar orbit
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