[{"word":"ferrocene","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"Any of a class of metallocenes containing an iron atom between two cyclopentadienyl rings; especially the simplest of the class bis-cyclopentadienyl iron.","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/ferrocene"]}]