from The Century Dictionary and Cyclopedia
- n. A form of door with the hinges on the lower side, so that it opens downward and outward. Also called falling door.
Sorry, no etymologies found.
Aziza chose a gum-ball machine-the same coin could be inserted to get candy, then retrieved from the flap-door coin return below.
But here Mahony gave a loud click of the tongue — in the general howl of execration it passed unheard — and, pushing his way out of the tent, let the flap-door fall to behind him.
The sound of advancing footsteps stopped at the gate, a small flap-door let in it flew open, and Matilda Bunker's open countenance took a pinkish hue, as a small man in jersey and blue coat, with a hard round hat exceeding high in the crown, stepped inside.
She raised a flap-door located at one side of the counter.
Each of these measures, however, had a hole in the side near the bottom for the corn to run through, and irons to which a little flap-door was once affixed in front of this hole.
B, a flap-door, four inches wide, which is raised for cleaning out the floor; under this door is a space of one inch, for passing out the urine of the rabbits.