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.
HEED THE VOX POPULI, AND TAKE THIS WORD OF THE DAY QUIZ!
Test your memory on these verbal firecrackers from the week of June 29 to July 5!
Question 1 of 7
Origin of flap door
First recorded in 1835–45
Words nearby flap door
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
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. Zwemer
In the side of his wagon cover next to me was a flap-door, which, the day being fine, was fastened open.