Photoresistor

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An electronic component whose resistance is inversely proportional to the intensity of incident light.

    "Use the preceding circuit, but replace the slide switch (S1) with the photoresistor (RP). Cover and uncover the photoresistor to change the sound."

Example

More examples

"Use the preceding circuit, but replace the slide switch (S1) with the photoresistor (RP). Cover and uncover the photoresistor to change the sound."

Etymology

From photo- + resistor.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.