1. Of, involving, caused by, or affecting the moon.
2. Measured by the revolution of the moon.
3. Of or relating to silver.

[Middle English, crescent-shaped, from Old French lunaire, from Latin lūnāris, of the moon, from lūna, moon.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.