lunar
adjective
lu·nar ˈlü-nər 
also -ˌnär
1
: crescent, lunate
who grasps the struggling heifer's lunar horns
Alexander Pope
Alexander Pope2
a
: 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
Example Sentences
Recent Examples on the Web The Mid-Autumn Festival falls on the 15th day of the eighth month of the Chinese lunar calendar, which typically lands between August and October when the moon is at its biggest and brightest. Megha Mcswain, Chron, 7 Sep. 2022 For many Asian cultures that celebrate holidays based on the lunar calendar, this is the second most important holiday after Lunar New Year. Momo Chang, San Francisco Chronicle, 31 Aug. 2022 The National Aeronautics and Space Administration’s newest rocket is set to lift off Monday morning, kicking off a new era of lunar exploration for the U.S. Danny Dougherty, WSJ, 27 Aug. 2022 The 42-day uncrewed flight test around the moon is the first in a series of missions, including future human lunar exploration. Julia Musto, Fox News, 23 Aug. 2022 The holiday follows the lunar calendar and usually peaks in October or November. Sarah Martens, Better Homes & Gardens, 8 Aug. 2022 Author Rebecca Boyle reports that scientists are cautiously optimistic—there's a lot of research to be done on the moon, and new partnerships with private companies could actually lead to an exciting time of lunar exploration. Laura Helmuth, Scientific American, 1 Aug. 2022 But Tiangong is not in an orbit that can be reached from Russia’s launchpads, and many of the discussions between the two countries have focused on cooperating on lunar exploration. New York Times, 26 July 2022 But Tiangong is not in an orbit that can be reached from Russia’s launchpads, and many of the discussions between the two countries have focused on cooperating on lunar exploration. Kenneth Chang, BostonGlobe.com, 26 July 2022 See More
Megha Mcswain, Chron, 7 Sep. 2022 For many Asian cultures that celebrate holidays based on the lunar calendar, this is the second most important holiday after Lunar New Year. Momo Chang, San Francisco Chronicle, 31 Aug. 2022 The National Aeronautics and Space Administration’s newest rocket is set to lift off Monday morning, kicking off a new era of lunar exploration for the U.S. Danny Dougherty, WSJ, 27 Aug. 2022 The 42-day uncrewed flight test around the moon is the first in a series of missions, including future human lunar exploration. Julia Musto, Fox News, 23 Aug. 2022 The holiday follows the lunar calendar and usually peaks in October or November. Sarah Martens, Better Homes & Gardens, 8 Aug. 2022 Author Rebecca Boyle reports that scientists are cautiously optimistic—there's a lot of research to be done on the moon, and new partnerships with private companies could actually lead to an exciting time of lunar exploration. Laura Helmuth, Scientific American, 1 Aug. 2022 But Tiangong is not in an orbit that can be reached from Russia’s launchpads, and many of the discussions between the two countries have focused on cooperating on lunar exploration. New York Times, 26 July 2022 But Tiangong is not in an orbit that can be reached from Russia’s launchpads, and many of the discussions between the two countries have focused on cooperating on lunar exploration. Kenneth Chang, BostonGlobe.com, 26 July 2022 See More Word History
Etymology
Middle English, from Latin lunaris, from luna moon; akin to Latin lucēre to shine — more at light
First Known Use
15th century, in the meaning defined at sense 1
Phrases Containing lunar
Kids Definition
lunar
adjective
lu·nar ˈlü-nər
1
: of or relating to the moon
lunar rock
2
: measured by the revolutions of the moon
a lunar month
Medical Definition
lunar
adjective
lu·nar
ˈlü-nər also -ˌnär
: lunate