/ Dictionary / Index L lunisolar precession: Meaning and Definition of Find definitions for: luniso'lar preces'sion Pronunciation: [key] — Astron. Astron. the principal component of the precession of the equinoxes, produced by the gravitational attraction of the sun and the moon on the equatorial bulge of the earth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lunisolar lunitidal Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language