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positive electron

American  

noun

Physics.
  1. positron.


Etymology

Origin of positive electron

First recorded in 1895–1900

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In 1932 he snapped the first picture of a positive electron.

From Time Magazine Archive

Boyish, modest Dr. Anderson discovered the positive electron in 1932 and is now a Nobel Prizeman.

From Time Magazine Archive

Dr. Anderson called his discovery the positive electron, or positron.

From Time Magazine Archive

Dr. Anderson discovered the positive electron under curious circumstances.

From Time Magazine Archive

The result of their bombardments of boron and other light elements by alpha rays, moreover, had led them to propose that the proton was composed of a neutron and a positive electron, or positron.

From "Big Science" by Michael Hiltzik