Definition of photoresistor in English:

photoresistor

noun

Physics
  • A resistor whose resistance varies according to its degree of illumination.

Origin

1950s; earliest use found in Chemical Abstracts. From photo- + resistor, perhaps after German Photowiderstand.

Pronunciation

photoresistor

/ˌfəʊtəʊrɪˈzɪstə/