| 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. |
membrane mem·brane (měm'brān')
n.
A thin pliable layer of tissue covering surfaces, enveloping a part, lining a cavity, or separating or connecting structures or organs.
cell membrane.
A thin sheet of natural or synthetic material that is permeable to substances in solution.
membrane (měm'brān') Pronunciation Key
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