WordNet
cylinder lock
n. a lock in which a cylinder rotates to move a bolt; tumblers are pins; inserting the key lifts and aligns the pins to free the cylinder to rotate
Usage examples of "cylinder lock".
Sloane checked the cylinder, then closed the gun and snapped the cylinder lock back in place.
There was a keypad lock affixed to his door in place of the usual sort of key and cylinder lock, and Kit tapped out a quick nine digits then pushed the door open into darkness.