[{"word":"calcium","phonetic":"/ˈkælsi.əm/","phonetics":[{"text":"/ˈkælsi.əm/","audio":"https://api.dictionaryapi.dev/media/pronunciations/en/calcium-us.mp3","sourceUrl":"https://commons.wikimedia.org/w/index.php?curid=1762886","license":{"name":"BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"}}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"The chemical element (Symbol Ca), with an atomic number 20. It is a soft, silvery-white alkaline earth metal which occurs naturally as carbonate in limestone and as silicate in many rocks.","synonyms":[],"antonyms":[]},{"definition":"An 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/calcium"]}]