/ Dictionary / Index L lunar: Meaning and Definition of Find definitions for: lu•nar Pronunciation: (l'nur), [key] — adj. of or pertaining to the moon: the lunar orbit. measured by the moon's revolutions: a lunar month. resembling the moon; round or crescent-shaped. of or pertaining to silver. —n. a lunar observation taken for purposes of navigation or mapping. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lunar (Thesaurus) luna moth lunar caustic Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language