/ Dictionary / Index E essential hypertension: Meaning and Definition of Find definitions for: essen'tial hyperten'sion Pronunciation: [key] — Pathol. Pathol. persistent high blood pressure of no known cause. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. essential amino acid essentialism Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language