See Also: Positron(medicine)
positron(dictionary)
positron(encyclopedia)
positron(dictionary)
positron emission tomography(medicine)
Positron emission tomography (PET)(health)
positron emission tomography (PET)(encyclopedia)
Positron Emission Tomography (PET or cardiac viability study)(health)

positron (iou)



positron noun. M20.
[from POSITIVE after electron.]
Physics. An elementary particle having the same mass as an electron and a numerically equal but positive charge.
Comb.: positron emission tomography Medicine a form of tomography which employs positron-emitting isotopes introduced into the body as a source of radiation instead of applying X-rays externally.
posi'tronic adjective M20.