Didonia
Di*do"ni*a\, n. [NL. So called in allusion to the classical story of Dido and the bull's hide.] (Geom.) The curve which on a given surface and with a given perimeter contains the greatest area. --Tait.| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
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