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| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
obstruction ob·struc·tion (əb-strŭk'shən, ŏb-)
n.
The blocking of a body passage, as by clogging or stricture.
The state of being obstructed.
Something, such as a mass or stricture, that obstructs.