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WordNet-Online
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Definitions from WordNet
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Definitions from the Web
Photocathode
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Noun - Physics: A photosensitive surface or material that emits electrons when illuminated by light, typically used in various devices such as image sensors, night vision equipment, and photomultiplier tubes.
Example sentence: The photocathode in the image sensor converts incident light into electrical signals, allowing the camera to capture high-quality photographs.
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Noun - Astronomy: A specialized type of photocathode used in astronomy to detect and record photons from celestial objects.
Example sentence: The sensitivity of the photocathode enabled the astronomers to detect faint starlight and capture detailed images of distant galaxies.
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Noun - Local: A popular band named Photocathode known for their unique blend of alternative rock and electronic music.
Example sentence: I'm really excited to attend the Photocathode concert tonight; their music always gets me dancing!
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