frame lock

/F R EY1 M L AA0 K/
noun
  1. 1

    A type of lock for a folding knife or other tool, distinct from the liner lock by the spring portion of the liner being replaced by an integral component of the handle.

  2. 2

    (metonymic) A knife or other tool with such a lock.

  3. 3

    (cycling) A lock that is permanently attached to the frame of a bicycle.