[{"word":"myofibril","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"Any of the cylindrical organelles, found within muscle cells, that are the contractile unit of muscles.","synonyms":[],"antonyms":[]}],"synonyms":["sarcostyle"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/myofibril"]}]