/ Dictionary / Index H hybrid vigor: Meaning and Definition of Find definitions for: hy'brid vig'or Pronunciation: [key] heterosis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hybrid tea hybris Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language