/ Dictionary / Index H hybrid perpetual: Meaning and Definition of Find definitions for: hy'brid perpet'ual Pronunciation: [key] a type of cultivated rose bred from varieties having vigorous growth and more or less recurrent bloom. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hybridoma hybrid tea Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language