/ Dictionary / Index A alveolar arch: Meaning and Definition of Find definitions for: alve'olar arch' Pronunciation: [key] the part of the upper or lower jawbone in which the teeth are set. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. alveolar alveolar ridge Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language