photosensor

[ foh-tuh-sen-ser, -sawr ]

/ ˈfoʊ təˌsɛn sər, -sɔr /

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noun

a photocell used to detect light.

QUIZ

QUIZ YOURSELF ON "WAS" VS. "WERE"!

Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.

Question 1 of 7

“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Also called photodetector.

Origin of photosensor

First recorded in 1960–65; photo- + sensor

That means that despite the density of photosensors, the eye has a resolution of only 100 pixels.
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