Deadlatch

• (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 latch key.
Found on http://thinkexist.com/dictionary/meaning/deadlatch/

Deadlatch

Dead'latch` noun 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. Knight.
Found on http://www.encyclo.co.uk/webster/D/10
No exact match found