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light pipe
noun
, Optics.
- an elongated transparent medium, such as an optical fiber, for transmitting light.
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Word History and Origins
Origin of light pipe1
First recorded in 1945–50
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Example Sentences
These include its newly redesigned thumb buttons, PCBs, and what Bolt calls its “impressive light pipe design.”
From The Verge
An occasional box of good Egyptian cigarettes or a nice light pipe, or one or two khaki handkerchiefs or a toothbrush would be most acceptable.
From BBC
They have succeeded with the aid of the laparoscope, a tube containing a "light pipe," less than half an inch in diameter.
This familiar principle causes the rod to act as a "light pipe."
The charm of the phrase lies precisely in this subtle but important ambiguity. :light pipe: /n./
From Project Gutenberg
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