LATCHKEY
Meaning of LATCHKEY in English
/lach"kee'/ , n. , pl. latchkeys .
a key for releasing a latch or springlock, esp. on an outer door.
[ 1815-25; LATCH + KEY 1 ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012