[{"word":"thrombin","phonetic":"/ˈθɹɒmbɪn/","phonetics":[{"text":"/ˈθɹɒmbɪn/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"An enzyme in blood that facilitates blood clotting by converting fibrinogen to fibrin (by means of ionized calcium).","synonyms":[],"antonyms":[]}],"synonyms":["factor II"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/thrombin"]}]