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.

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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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for flap door