lu·​nar | \ ˈlü-nər also -ˌnär How to pronounce lunar (audio) \

Definition of lunar

1 : crescent, lunate who grasps the struggling heifer's lunar horns— Alexander Pope
2a : of, relating to, or resembling the moon lunar craters a lunar landscape
b : designed for use on the moon lunar vehicles
3 : measured by the moon's revolution lunar month

Examples of lunar in a Sentence

Recent Examples on the Web

These aren’t particularly advanced scientific instruments, but the scientific discoveries Beresheet will make are secondary to the achievement of reaching the lunar surface at all. Avery Thompson, Popular Mechanics, "A Private Mission Hopes to Reach the Lunar Surface Without Help from Any Governments," 19 Feb. 2019 Under its present plans, NASA is unlikely to return humans to the lunar surface before 2030. Eric Berger, Ars Technica, "Here’s why China’s launch to the far side of the Moon is a big deal," 10 Dec. 2018 When the sunlight travels through the atmosphere, the shorter (bluish) wavelengths scatter, leaving only the longer (reddish) wavelengths to actually make it to the lunar surface. Vogue, "What Is the Blood Moon?," 25 July 2018 After more than four days of flying through space, Conrad and Bean settled onto the lunar surface on Nov. 19, landing in a broad plain called the Ocean of Storms. The Washington Post,, "Alan Bean, fourth man to walk on the moon, dies at 86," 26 May 2018 Bridenstine then recalled July 20, 1969, when the first Apollo mission landed on the lunar surface. Elizabeth Howell,, "New NASA Chief Sees Moon Missions Building a 'Railroad' to Mars," 9 May 2018 Although solar and lunar halos form in the same way, there’s one noticeable difference. Kathryn Prociv, Washington Post, "Skywatchers in Chile were star-struck by this incredible lunar halo," 13 Apr. 2018 In the method ultimately employed, a powerful launch vehicle (Saturn V rocket) placed a 50-ton spacecraft in a lunar trajectory. Casey Newton, The Verge, "What YouTube could teach Facebook about conspiracies," 24 July 2018 The lunar and Martian habitats will be on display at the Goodwood Festival of Speed in Chichester, England, being held from July 12 to 15. NBC News, "Here's what future Mars and lunar space colonies could look like," 7 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lunar.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of lunar

15th century, in the meaning defined at sense 1

History and Etymology for lunar

Middle English, from Latin lunaris, from luna moon; akin to Latin lucēre to shine — more at light

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Statistics for lunar

Last Updated

19 Mar 2019

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Time Traveler for lunar

The first known use of lunar was in the 15th century

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English Language Learners Definition of lunar

: of or relating to the moon


lu·​nar | \ ˈlü-nər How to pronounce lunar (audio) \

Kids Definition of lunar

1 : of or relating to the moon lunar rock
2 : measured by the revolutions of the moon a lunar month


lu·​nar | \ ˈlü-nər also -ˌnär\

Medical Definition of lunar

: lunate

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More from Merriam-Webster on lunar

Rhyming Dictionary: Words that rhyme with lunar

Spanish Central: Translation of lunar

Nglish: Translation of lunar for Spanish Speakers

Britannica English: Translation of lunar for Arabic Speakers

Comments on lunar

What made you want to look up lunar? Please tell us where you read or heard it (including the quote, if possible).


to reflect, repel, echo, or resound

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