safety lock

noun

1. a lock designed to prevent picking.
2. safety ( def 4 ).

Word History and Origins

Origin of safety lock¹

First recorded in 1875–80

Example Sentences

With a power output of 1,000 watts, ten power settings, and additional features like warm-hold, buzzer silencing, and a child safety lock, this microwave is ready to help you whip up amazing meals.

From Popular-Science

There are additional options for pre-programmed settings, sensor cooking, a customizable button volume, and safety locks.

From Popular-Science

Most of our combinations have a safety lock, and you have to know the combination to get in.

From Project Gutenberg

When so loaded, or supposed to be loaded, it is habitually carried locked; that is, with the safety lock turned to the "safe."

From Project Gutenberg

At the command Pieces turn the safety lock fully to the right.

From Project Gutenberg

The safety lock is said to be at the "ready" when turned to the left, and at the "safe" when turned to the right.

From Project Gutenberg

When so loaded, or supposed to be loaded, it is habitually carried locked; that is, with the safety lock turned to the "Safe."

From Project Gutenberg