lunar

adjective

lu·​nar ˈlü-nər 

 also  -ˌnär

1

: crescent, lunate

who grasps the struggling heifer's lunar horns

—Alexander Pope

2

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

Examples of lunar in a Sentence

Recent Examples on the Web

Here's What Jupiter in Gemini Means for You, Based on Your Zodiac Sign The lunar phases and their meaning There are eight lunar phases: new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter and waning crescent. —Valerie Mesa, Peoplemag, 6 June 2024

Starship’s reliability is key to NASA’s ongoing Artemis lunar program meant to pave the way for establishing a permanent human presence on the moon’s surface by the end of the decade. —Andrew Paul, Popular Science, 6 June 2024

While spacesuits on Mars will be different from those on the Moon, this lunar landing will allow for a better understanding of long-term life suited up. —Sara Novak, Discover Magazine, 5 June 2024

Additionally, space is having a bit of a moment: In 2023, lunar lander maker ispace went public, and, this month, satellite servicer Astroscale announced plans to go public. —Allie Garfinkle, Fortune, 4 June 2024

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

• lunar caustic
• lunar eclipse
• lunar module
• lunar month

Kids Definition

lunar

adjective

lu·​nar ˈlü-nər 

1

: of, relating to, or resembling the moon

lunar craters

a lunar landscape

2

: measured by the moon's revolution

lunar month

Medical Definition

lunar

adjective

lu·​nar

ˈlü-nər also -ˌnär

: lunate