[{"word":"thallium","phonetic":"/ˈθæliəm/","phonetics":[{"text":"/ˈθæliəm/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A metallic chemical element (symbol Tl) with atomic number 81: a gray post-transition metal that discolors when exposed to air.","synonyms":[],"antonyms":[]},{"definition":"A single atom of this element.","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/thallium"]}]