Phrase guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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noun
A sensor which measures the intensity of light, often used to start and stop electrical equipment (motorized doors, etc.).
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
a transducer used to detect and measure light and other radiations
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: photoelectric cell, photoconductive cell, photocell, magic eye
Antonyms: none provided
Broader terms: detector, sensor, sensing element, transducer
Narrower terms: selenium cell
History
No etymology was provided for this word.
Across languages
1 source translations are retained for this English entry.
