[{"word":"niobium","phonetic":"/naɪˈoʊbiəm/","phonetics":[{"text":"/naɪˈoʊbiəm/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A chemical element (symbol Nb) with an atomic number of 41: a light grey, crystalline, ductile transition metal used in superconducting materials.","synonyms":[],"antonyms":[]},{"definition":"A single atom of this element.","synonyms":[],"antonyms":[]}],"synonyms":["columbium","dianium"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/niobium"]}]