/ Dictionary / Index H hyperweak force: Meaning and Definition of Find definitions for: hy'per•weak' force' Pronunciation: (hī'pur-wēk', hī"-), [key] — Physics. Physics. a hypothetical force that transforms quarks into leptons and vice versa at high energies. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hypervitaminosis hypesthesia Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language