/ Dictionary / Index G Gell-Mann: Meaning and Definition of Find definitions for: Gell-Mann Pronunciation: (gel-män', -man'), [key] born 1929, U.S. physicist: devised a system for classifying elementary particles and postulated theory of quarks; Nobel prize 1969. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: gell-mann (Thesaurus) gelignite gel mineral Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language