Concerning both the moon and sun's motions

WordNet Word definitions in WordNet
adj. relating to or attributed to the moon and the sun or their mutual relations

Wiktionary Word definitions in Wiktionary
a. 1 (context of a calendar English) Based on both the lunar month and the solar year. 2 Pertaining to or caused by both the moon and the sun.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Lunisolar \Lu"ni*so"lar\, a. [L. luna moon + E. solar: cf. F. lunisolaire.] Resulting from the united action, or pertaining to the mutual relations, of the sun and moon. Lunisolar precession (Astron.), that portion of the annual precession of the equinoxes ...