positron
pronunciation
How to pronounce positron in British English:
UK [ˈpɒzɪtrɒn]
How to pronounce positron in American English:
US [ˈpɑːzɪtrɑːn]
-
- Noun:
- an elementary particle with positive charge; interaction of a positron and an electron results in annihilation
Word Origin
- positron (n.)
- 1933, coined from posi(tive) (elec)tron.
Example
- 1. It was a very difficult first step to accept the positron .
- 2. Some of these gamma rays pass near atomic nuclei , in the process transforming into an electron and a positron , researchers said .
- 3. The result is that the electron shadow and the positron shadow are separated .
- 4. Positron and electron ( particle and anti-particle ) can annihilate in collision turning into electromagnetic radiation .
- 5. Pet , or positron emission tomography , is an imaging study that allows doctors to evaluate the use of certain substances by the brain .