WordReference Random House Unabridged Dictionary of American English © 2026
in•ter•lu•nar
(in′tər lo̅o̅′nər),USA pronunciation adj.
- pertaining to the moon's monthly period of invisibility between the old moon and the new.
- inter- + lunar 1590–1600
'interlunar' also found in these entries (note: many are not synonyms or translations):