positive ray

noun Physics.

a stream of positive ions traveling from a metallic anode to the cathode in a gas-discharge tube.
Also called anode ray, canal ray.

Origin of positive ray

First recorded in 1900–05

Words nearby positive ray

positive feedback, positive ion, positive law, positive organ, positive polarity, positive ray, positive scotoma, positive stain, positive theology, positive vetting, positive-negative pressure breathing