Breadcrumb Home > Dictionary > Index H hyal-: Meaning and Definition of Find definitions for: hyal- Pronunciation: [key] var. ofbefore a vowel: hyalite. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hyaena hyaline ✖ Related Content Daily Word Quiz: tendentious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language