mill race /ˈmɪlɹeɪs/ noun1 •A fast-running water-filled channel diverted from a river or stream used to drive the millwheel in a watermill.She liked the cold water of the mill-race, and without shame or hesitation would throw off her frock and float like a mermaid, almost invisible, in the watery element. — 1935 formsmill races · mill-races
