[{"word":"tryptophan","phonetic":"/ˈtɹɪptə(ʊ)fan/","phonetics":[{"text":"/ˈtɹɪptə(ʊ)fan/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"An essential amino acid having an indole side chain; it is present in many foods, especially chocolate, oats, bananas and milk; it is essential for normal growth and development and is the precursor of serotonin and niacin; any specific form of this compound, or any derivative of it.","synonyms":[],"antonyms":[]}],"synonyms":["Trp","tryp"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/tryptophan"]}]