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If it lets NO light through it can not even give a blurry view, so your question makes no sense and cannot be answered.
AnswerI believe you're thinking about '''translucent.'''See the Related Link "Wikitionary:translucent" to the right for more information.or if your talking about a word that describes material that lets all light through it is transparent
Glass. Any transparent material, which is any material that lets light through, can also been seen through.
metal
translucant
copper :)
translucent
copper :)
it lets in material to the cell which it needs like a filter it allows water but not other material.
Yes, that is correct
translucent
it is called conductivity.