a reniform leaf; hematite in reniform masses.
having the shape or profile of a kidney: a reniform leaf, a reniform mass of haematite
reniform ren·i·form (rěn’ə-fôrm’, rē’nə-)
Shaped like a kidney. Used to describe certain minerals and certain leaves.
noun, Biochemistry. 1. a proteolytic enzyme secreted by the kidneys that is involved in the release of angiotensin. noun 1. 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) n. A protein-digesting enzyme that is released by the kidneys and that catalyzes […]
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