[{"word":"thyroxine","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A hormone (an iodine derivative of tyrosine), produced by the thyroid gland, that regulates cell metabolism and growth.","synonyms":[],"antonyms":[]}],"synonyms":["tetraiodothyronine"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/thyroxine"]}]