\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 which depends on the joint
   action of the sun and moon.
{Lunisolar year}, a period of time, at the end of which, in
   the Julian calendar, the new and full moons and the
   eclipses recur on the same days of the week and month and
   year as in the previous period. It consists of 532 common
   years, being the least common multiple of the numbers of
   years in the cycle of the sun and the cycle of the moon.