[{"word":"antiprotons","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"The antiparticle of the proton, having a negative electric charge.","synonyms":[],"antonyms":[]}],"synonyms":["pbar"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/antiproton","https://en.wiktionary.org/wiki/antiprotons"]}]