photoelectric cell
Noun
Meaning
a transducer used to detect and measure light and other radiations
Source: WordNetSynonyms
photocell
magic eye
electric eye
photoconductive cell
phototube
charge-coupled device
light-receiving surface
electronic eye
electronic image sensor
image pickup tube
light collecting device
light detecting element
light receiving section
photovoltaic panel
active pixel sensor
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Hypernyms
Hyponyms
Examples
The sense in which an automatic door "understands instructions" from its photoelectric cell is not at all the sense in which I understand English.