[ loo-ni-soh-ler ]
/ ˌlu nɪˈsoʊ lər /


pertaining to or based upon the relations or joint action of the moon and the sun.

Origin of lunisolar

First recorded in 1685–95; luni- + solar1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for lunisolar

British Dictionary definitions for lunisolar

/ (ˌluːnɪˈsəʊlə) /


resulting from, relating to, or based on the combined gravitational attraction of the sun and moon

Word Origin for lunisolar

C17: from Latin lūna moon + solar
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for lunisolar

[ lōō′nĭ-sōlər ]

Relating to or caused by both the Sun and the Moon. Lunisolar gravitational attraction is the principle force influencing the Earth's tides and the cause of the Earth's orbital precession.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.