The story
From Ancient Greek βραδύς (bradús, “slow, brady-”) + Ancient Greek κίνησις (kínēsis, “motion”) + -in.
Etymology from Wiktionary, CC BY-SA 4.0.
bradykinin
Today it means: A compound released in the blood in some circumstances which causes contraction of smooth muscle and dilation of blood vessels. It is a peptide with nine amino-acid residues. Full definition →