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bn:00027052n
Noun Concept
SYL
No term available
EN
A transparent filter that reduces the light (or some wavelengths of the light) passing through it WordNet 3.0
Relations
Sources
IS A
EN
filter
PART OF
EN
optics
HAS KIND
EN
neutral-density filter
EN
graduated neutral-density filter
EN
Lyot filter
EN
atomic line filter
EN
polarizer

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