pair creation is a noun meaning "the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus". It carries one recorded sense.
the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus
Definitions, synonyms and semantic relations for pair creation come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.