Breadcrumb Home > Dictionary > Index Z zenith distance: Meaning and Definition of Find definitions for: ze'nith dis"tance Pronunciation: [key] — Astron. Astron. the angular distance from the zenith of a point on the celestial sphere to the sphere, measured along a great circle that is perpendicular to the horizon; the complement of the altitude. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. zenithal equidistant projection zenith tube TrendingHere are the facts and trivia that people are buzzing about. Hard Labor Current Events This Week: June 2023 Languages Spoken in Each Country of the World User's Guide to Environmental Language The Washington Monument: Facts, History & Profile LGBT Pride Month | Biographies of Notable Individuals Civilian Labor Force ✖ Related Content Daily Word Quiz: poetaster Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language