Noun: positron 'pó-zi,trón
- An elementary particle with positive charge; interaction of a positron and an electron results in annihilation
"Positron emission tomography uses the annihilation of positrons for medical imaging"; "antielectron emission tomography uses the annihilation of positrons for medical imaging";
- antielectron
Derived forms: positrons
Type of: antilepton
Encyclopedia: Positron