[{"word":"meson","phonetic":"/ˈmɛs.ɒn/","phonetics":[{"text":"/ˈmɛs.ɒn/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"(rare outside entomology) The mesial plane dividing the body into similar right and left halves.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/meson"]},{"word":"meson","phonetic":"/ˈmiː.sɒn/","phonetics":[{"text":"/ˈmiː.sɒn/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A member of a group of subatomic particles having a mass intermediate between electrons and protons. (The most easily detected mesons fit this definition.)","synonyms":[],"antonyms":[]},{"definition":"(now specifically) An elementary particle that is composed of a quark and an antiquark, such as a kaon or pion. (Mesons composed of rarer quarks are much heavier.)","synonyms":[],"antonyms":[]}],"synonyms":["mesotron"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/meson"]}]