antiproton
1. [ noun ] (physics,high energy physics,nuclear physics) an unstable negatively charged proton; the antiparticle of a proton
Related terms: nucleon
Similar spelling:   antiprotozoal
  antiphon
  antiphony
  antipasto
  antiphonal
  antibiotic
  antiphonary
  antipruritic
  antiviral
  antipersonnel
  antipathy
  antiapartheid