trap door

[trap-dawr, -dohr]

trap·door

[trap-dawr, -dohr]
noun
1.
a door flush with the surface of a floor, ceiling, or roof.
2.
the opening that it covers.
adjective
3.
of, pertaining to, or like a trapdoor.

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Trap door is always a great word to know.
So is gobo. Does it mean:
a chattering or flighty, light-headed person.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.

Origin:
1325–75; Middle English trappe dore. See trap1, door
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Collins
World English Dictionary
trap door
 
n
1.  a door or flap flush with and covering an opening, esp in a ceiling
2.  the opening so covered

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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FOLDOC
Computing Dictionary

trap door definition


Or "trapdoor" 1. back door.
2. trap-door function

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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