[{"word":"methylene","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"The divalent radical CH2< in which the free valencies are part of single bonds.","synonyms":[],"antonyms":[]},{"definition":"The same group, present as a repeating unit, in aliphatic compounds with names such as hexamethylenediamine.","synonyms":[],"antonyms":[]},{"definition":"The unstable carbene CH2:","synonyms":[],"antonyms":[]}],"synonyms":["methene"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/methylene"]}]