[{"word":"renin","phonetic":"/ˈɹiː.nɪn/","phonetics":[{"text":"/ˈɹiː.nɪn/","audio":""},{"text":"/ˈɹi.nɪn/","audio":""}],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A circulating enzyme released by mammalian kidneys that converts angiotensinogen to angiotensin-I. Because its activity ultimately leads to formation of angiotensin-II and aldosterone, this hormone plays a role in maintaining blood pressure.","synonyms":[],"antonyms":[]}],"synonyms":["angiotensinogenase"],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/renin"]}]