'photocell' definitions:

Definition of 'photocell'

(from WordNet)
noun
A transducer used to detect and measure light and other radiations [syn: photoelectric cell, photoconductive cell, photocell, electric eye, magic eye]

Definition of 'photocell'

From: GCIDE
  • photocell \pho"to*cell`\ (f[=o]"t[-o]*s[e^]l`) n. An electrical device which changes voltage or resistance upon exposure to light, used to detect and measure light and other radiations.
  • Syn: photoelectric cell, electric eye. [WordNet 1.5]