[{"word":"actinides","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"Any of the 14 radioactive elements of the periodic table that are positioned under the lanthanides, to which they have similar chemistry.","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/actinide","https://en.wiktionary.org/wiki/actinides"]}]