The story
From nesi- (of unknown origin) + -ritide (“natriuretic peptide”).
Etymology from Wiktionary, CC BY-SA 4.0.
nesiritide
Today it means: The recombinant form of the 32-amino acid human B-type natriuretic peptide, used to facilitate cardiovascular fluid homeostasis through counterregulation of the renin–angiotensin–aldosterone system. Full definition →