[{"word":"radiopaque","phonetics":[],"meanings":[{"partOfSpeech":"adjective","definitions":[{"definition":"Impenetrable to X-rays and other radiation","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":["radiolucent"]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/radiopaque"]}]