Phototransistor Definition

fōtō-trăn-zĭstər
noun
A device combining the function of a photodiode with the amplifying function of a transistor.
Webster's New World
A transistor that regulates current based not on an electrical signal but on the intensity of light hitting its photosensitive base.
American Heritage

Other Word Forms of Phototransistor

Noun

Singular:
phototransistor
Plural:
phototransistors

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phototransistor