button lock

A type of lock (for knives, and other tools, of folding or collapsing type) in which the lock is released with the press of a button, usually on the side of the handle; such a lock often allows the tool to be locked closed as well as locked open.

Noun

  1. A type of lock (for knives, and other tools, of folding or collapsing type) in which the lock is released with the press of a button, usually on the side of the handle; such a lock often allows the tool to be locked closed as well as locked open.
  2. A knife or other tool with such a lock.

Forms

button locks buttonlock