[{"word":"ferrous","phonetic":"/ˈfɛɹəs/","phonetics":[{"text":"/ˈfɛɹəs/","audio":""}],"meanings":[{"partOfSpeech":"adjective","definitions":[{"definition":"Of or containing iron.","synonyms":[],"antonyms":[]},{"definition":"Of compounds of iron in which it has a valence or oxidation number of 2.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":["nonferrous"]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/ferrous"]}]