/ Dictionary / Index S strange quark: Meaning and Definition of Find definitions for: strange' quark' Pronunciation: [key] — Physics. Physics. a quark having electric charge −1/3 times the elementary charge and strangeness −1; it is more massive than the up and down quarks. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. strange particle stranger 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