antiproton

Meanings

1. 1
   noun

   the antiparticle of the proton, with the same mass but a negative electric charge

   A proton and an antiproton can annihilate when brought together.

Formed from anti- + proton. The first antiprotons were produced experimentally in 1955; the prefix identifies the proton's oppositely charged antimatter counterpart.

Topics

External links

• Google Images
• Cambridge Dictionary
• Wiktionary