noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The simultaneous creation of a particle and its antiparticle. countable, uncountable
2. 2
   the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus wordnet

Synonyms

All synonyms

pair creationpair formationschwinger

Antonyms

All antonyms

annihilationannihilating