/ Dictionary / Index A Atlas Mountains: Meaning and Definition of Find definitions for: At'las Moun'tains Pronunciation: [key] a mountain range in NW Africa, extending through Morocco, Algeria, and Tunisia. Highest peak, Mt. Tizi, 14,764 ft. (4500 m). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Atlas cedar atlatl Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language