keyway

[ kee-wey ]
/ ˈkiˌweɪ /

noun

Machinery. a groove in a shaft, the hub of a wheel, etc., for receiving part of a key holding it to another part.
a slot in a lock for receiving and guiding the key.
(in poured-concrete construction) a longitudinal groove in a footing, or in a pour that has set, providing a key for newly poured concrete.
a depression or slot carved into rock to provide a bond or anchorage for a structure, as a dam.

Origin of keyway

First recorded in 1865–70; key1 + way1

Example sentences from the Web for keyway

British Dictionary definitions for keyway

keyway
/ (ˈkiːˌweɪ) /

noun

a longitudinal slot cut into a component to accept a key that engages with a similar slot on a mating component to prevent relative motion of the two components