[{"word":"petrochemistry","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"The branch of chemistry that deals with petroleum, natural gas and their derivatives.","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/petrochemistry"]}]