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Entry 1 sense Webster, 1913

Deadlatch

· Dead·latch · IPA
01 n. A kind of latch whose bolt may be so locked by a detent that it can not be opened from the inside by the handle, or from the outside by the…
  1. 1.
    A kind of latch whose bolt may be so locked by a detent that it can not be opened from the inside by the handle, or from the outside by the latch key.