[{"word":"radioisotopes","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A radioactive isotope of an element","synonyms":[],"antonyms":[]}],"synonyms":["radionuclide"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/radioisotope","https://en.wiktionary.org/wiki/radioisotopes"]}]