trapdoor

[ trap-dawr, -dohr ]

/ ˈtræpˈdɔr, -ˈdoʊr /

a door flush with the surface of a floor, ceiling, or roof.

the opening that it covers.

of, relating to, or like a trapdoor.

Also called drop.

Origin of trapdoor

First recorded in 1325–75, trapdoor is from the Middle English word trappe dore. See trap¹, door

But we reached Camp David in one piece, and there was no trapdoor for Cap.

My Sober Celebration With Nixon |Peter G. Peterson |June 12, 2009 |DAILY BEAST
Then he strode away, stepped through the trapdoor, began to descend, disappeared.

Children of the Market Place |Edgar Lee Masters
The words rushed out as if through a trapdoor she could not control.

The Black Tide |Arthur G. Stangland
At the end of twenty minutes they discovered a sort of trapdoor, and heard weak and inarticulate cries arise from beneath it.

The Trappers of Arkansas |Gustave Aimard

A low whistle, like the cry of a night-bird, and the trapdoor was again removed.

The Winning of the Golden Spurs |Percy F. Westerman
He still held a gun in his hand and whirled sharply as the trapdoor suddenly flew open.

The Boy Allies Under the Sea |Robert L. Drake