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Electric eye

noun

Definitions

Noun
  1. 1
    A sensor which measures the intensity of light, often used to start and stop electrical equipment (motorized doors, etc.).

    "A man and woman sat before an electric eye in a London laboratory tonight and a group of people in a darkened room in this village outside New York watched them turn their heads move from side to side."

  2. 2
    a transducer used to detect and measure light and other radiations wordnet

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Unscramble this word: electriceye