/ Dictionary / Index Z zone of avoidance: Meaning and Definition of Find definitions for: zone' of avoid'ance Pronunciation: [key] — Astron. Astron. the area of the sky in the plane of the Milky Way where interstellar dust obscures visible light so that no distant galaxies can be observed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. zone melting zone of fire Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language