| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
sedimentation sed·i·men·ta·tion (sěd'ə-mən-tā'shən, -měn-)
n.
The act or process of depositing or forming a sediment.