WordReference Random House Unabridged Dictionary of American English © 2026
pos′itive ray′, [Physics.]
  1. Physicsa stream of positive ions traveling from a metallic anode to the cathode in a gas-discharge tube. Also called anode ray, canal ray. 
  • 1900–05

'positive ray' also found in these entries (note: many are not synonyms or translations):
anode ray - canal ray

Forum discussions with the word(s) "positive ray" in the title:


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