Definitions

1. noun

A type of particle in the Standard Model of particle physics, characterized by half-integer spin and exhibiting Fermi–Dirac statistics.

“The physicist studied the properties of fermions in various subatomic particles.”

2. noun

In quantum field theory, a fermion is a field quanta, such as an electron or quark, which has half-integer spin.

“The theory of fermion fields helped researchers understand the behavior of subatomic particles.”