also: ドアクローザ
noun
door closer; door closing device
A mechanical device that automatically closes a door after it has been opened.
このドアにはドアクローザーが付いているので、手を離してもゆっくり閉まります。
This door has a door closer, so it closes slowly even if you let go.
Variant with interpunct; less common in running text.
Loanword from English 'door closer'.