Definition of phototube in English:

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phototube

Pronunciation: /ˈfəʊtəʊtjuːb/

noun

Electronics
A photocell in the form of an electron tube with a photoemissive cathode.
Example sentences
  • Aliquots of 2 mL of the virus-photoproducts solution were placed in quartz phototubes, capped, and bubbled with oxygen for 5 min before being irradiated.
  • Firefly flash and locomotion were observed using IR illumination that did not effect the phototube.
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