flap door
noun
Also called falling door.
a door hinged at the bottom so as to fall downward and outward.
a door placed horizontally or on a shallow incline, as an exterior cellar door.
Origin of flap door
First recorded in 1835–45
Words nearby flap door
flannery,
flanning,
flanny,
flap,
flap amputation,
flap door,
flap operation,
flap valve,
flapdoodle,
flapdragon,
flaperon
Example sentences from the Web for flap door
The other part of the shop is closed by a flap-door that does not show on the picture.
Topsy-Turvy Land |Samuel M. ZwemerIn the side of his wagon cover next to me was a flap-door, which, the day being fine, was fastened open.