positive ray

noun

, Physics.

1. a stream of positive ions traveling from a metallic anode to the cathode in a gas-discharge tube.

Word History and Origins

Origin of positive ray¹

First recorded in 1900–05

Example Sentences

Before testing positive, Ray had attended meetings with top commanders from each of the armed services.

From Fox News

“The prospect of some sort of stimulus is a positive ray of light,” said Sarat Sethi of Douglas C. Lane & Associates.

From Washington Post

“I said I never want that to happen again. I went to the chief a week later and said we can turn this into something positive,” Ray said.

From Washington Times

"He had a marijuana positive," Ray Flynn told Reuters in a telephone call from the United States.

From Reuters