- of or relating to the moon
- occurring on, used on, or designed to land on the surface of the moon: lunar module
- relating to, caused by, or measured by the position or orbital motion of the moon
WordReference Random House Learner's Dictionary of American English © 2026
lu•nar /ˈlunɚ/USA pronunciation
adj. [before a noun]
WordReference Random House Unabridged Dictionary of American English © 2026- Astronomyof or relating to the moon:lunar orbit; a lunar month.
lu•nar
(lo̅o̅′nər),USA pronunciation adj.
n.
- Astronomyof or pertaining to the moon:the lunar orbit.
- Astronomymeasured by the moon's revolutions:a lunar month.
- resembling the moon;
round or crescent-shaped. - Chemistryof or pertaining to silver.
n.
- Astronomya lunar observation taken for purposes of navigation or mapping.
- Latin lūnāris of the moon. See Luna, -ar1
- 1585–95
Collins Concise English Dictionary © HarperCollins Publishers::
lunar /ˈluːnə/ adj
'lunar' also found in these entries (note: many are not synonyms or translations):
Armstrong
- Chunjie
- Dasara
- eclipse
- epact
- Hevelius
- LEM
- lunar eclipse
- lunar module
- lunar month
- lunar year
- mascon
- month
- moon
- paraselene
- perilune
- tide
- walled plain
- year
- apolune
- ar-
- Chinese calendar
- circumlunar
- cislunar
- cohenite
- day
- interlunar
- Islamic calendar
- LM
- lunar caustic
- lunar cycle
- lunar day
- lunar distance
- lunar excursion module
- Lunar Orbiter
- lunar rainbow
- lunar rover
- lunation
- lunitidal interval
- mare
- module
- moonbow
- moonprobe
- moonrock
- Muslim calendar
- ranger
- ray
- Tet
- translunar
- translunary