| 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. |
| Main Entry: | third sector |
| Part of Speech: | n |
| Definition: | the business sector including charitable, religious, philanthropic, community, and volunteer organizations |
| Etymology: | the other two sectors are private and public |