[{"word":"isobutane","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A hydrocarbon, a particular isomer of C4H10 found in natural gas.","synonyms":[],"antonyms":[]}],"synonyms":["2-methylpropane","methylpropane","trimethylmethane"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/isobutane"]}]