/ Dictionary / Index Z zenithal: Meaning and Definition of Find definitions for: ze•nith•al Pronunciation: (zē'nu-thul or, esp. Brit., zen'u-), [key] — adj. of or pertaining to the zenith; situated at or near the zenith. (of a map) drawn to indicate the actual direction of any point from the center point. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: zenithal (Thesaurus) zenith zenithal equidistant projection Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language