Breadcrumb Home > Dictionary > Index H hadron: Meaning and Definition of Find definitions for: had•ron Pronunciation: (had'ron), [key] — n. Physics. any elementary particle that is subject to the strong interaction. Hadrons are subdivided into baryons and mesons. Cf. quark. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hadron (Thesaurus) Hadrian's Wall hadrosaur TrendingHere are the facts and trivia that people are buzzing about. Hard Labor Current Events This Week: June 2023 Languages Spoken in Each Country of the World User's Guide to Environmental Language The Washington Monument: Facts, History & Profile LGBT Pride Month | Biographies of Notable Individuals Civilian Labor Force ✖ Related Content Daily Word Quiz: poetaster Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language