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positron
This term describes a specific particle of antimatter. It is used almost exclusively within the realms of particle physics, quantum mechanics, and medical imaging, such as in Positron Emission Tomography (PET scans). The word carries a clinical and scientific connotation, evoking images of high-energy collisions and radioactive decay.
As a countable noun, it follows standard English pluralization rules. It refers to a discrete entity that can be quantified in experimental settings, though it is often discussed in the context of pairs during annihilation events with electrons.
Meanings
Examples
A positron is the antiparticle of the electron.
A positron is the antiparticle of the electron.
The PET scan works by detecting gamma rays emitted when a positron annihilates with an electron.
Wait, so a positron has a positive charge but the same mass as an electron?
The researcher observed the emission of a positron during the beta plus decay process.
I wonder if we could ever harness a stream of positrons for energy.
The collision produced a pair consisting of an electron and a positron.
Positron emission tomography allows doctors to see metabolic activity in the brain.
The particle accelerator was designed to collide a positron with an electron.