|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.|
psyllium psyl·li·um (sĭl'ē-əm)
An annual Eurasian plant having opposite leaves and small flowers borne in dense spikes.
The seeds of this plant, widely used as a mild bulk laxative and sometimes added to foods as a dietary source of soluble fiber.