e/Door chain

Information
has gloss	eng: A door chain, security chain, or security door chain is a small chain on a door for security purposes. It is a type of lock that is often used along with other types of locks to secure a door.
lexicalization	eng: door chain
lexicalization	eng: Door-chain
instance of	(noun) a linked or connected series of objects; "a chain of daisies" chain