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| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| natural science | |
| —n | |
| 1. | the sciences collectively that are involved in the study of the physical world and its phenomena, including biology, physics, chemistry, and geology, but excluding social sciences, abstract or theoretical sciences, such as mathematics, and applied sciences |
| 2. | any one of these sciences |
| natural scientist | |
| —n | |
| natural science
A science, such as biology, chemistry, or physics, that deals with the objects, phenomena, or laws of nature and the physical world. |