falling door

noun

1. flap door ( def 1 ).

Word History and Origins

Origin of falling door¹

First recorded in 1745–55

Example Sentences

The moment the brute touched the bait the falling door slid down, imprisoning the prowler.

From Project Gutenberg

His support being withdrawn, he went plunging headlong with the falling door.

From Project Gutenberg

The rear of the cage was solid; the front had a falling door.

From Project Gutenberg

Answering the crash of the falling door, came another and more fearful crash within.

From Project Gutenberg