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photoconduction
photoconductivity
photocopier
photocopy
photocurrent
photodecomposition
photodegradable
photodermatology
photodiode
photodisintegration
photodriven
photoduplicate
photodynamic
photodynamics
photoelectric
photoelectric cell
photoelectric effect
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photodiode
pho·to·di·ode [ ftō dd ] (plural pho·to·di·odes)


noun 
Definition:
 
semiconductor used to detect light: a semiconductor device in which the flow of current is controlled by the intensity of light and that can therefore be used to detect light
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