a proteolytic enzyme secreted by the kidneys that is involved in the release of angiotensin.
a proteolytic enzyme secreted by the kidneys, which plays an important part in the maintenance of blood pressure
renin re·nin (rē’nĭn, rěn’ĭn)
A protein-digesting enzyme that is released by the kidneys and that catalyzes the hydrolysis of angiotensinogen to angiotensin I. Also called angiotensinogenase.
A proteinase enzyme of high specificity that is released by the kidney and acts to raise blood pressure by activating angiotensin. See also angiotensin.
reniportal ren·i·por·tal (rěn’ə-pôr’tl, rē’nə-) adj. Relating to the hilum of the kidney. Relating to the portal or venous capillary circulation in the kidney.
adjective 1. resisting pressure; resistant. 2. persistently opposing; recalcitrant. adjective (rare) 1. reluctant; recalcitrant 2. not flexible
adjective 1. (Northern English, dialect) unpleasant; horrible
noun 1. the currency of the People’s Republic of China, the basic unit of which is the yuan. noun (pl) renminbi 1. another name for the Chinese yuan