emulgent

Etymology
, present participle of ; so called because the kidney was regarded by the ancients as straining out the serum, as if by milking, and so producing the urine.

Adjective

 * 1) Of a straining or purifying process.
 * 2)  Of the renal arteries and veins.

Noun

 * 1)  A substance promoting bile or urine production
 * 2) A renal artery or vein.