Fermi degeneracy; degenerate fermions; Fermi gas; degenerate matter
Physics term for a state where fermions occupy the lowest available energy levels due to the Pauli exclusion principle, often encountered in dense astrophysical objects like white dwarfs and neutron stars.
White dwarfs are supported by the pressure of Fermi degeneracy.
Degenerate electron gas is important for explaining the properties of metals.
Compound of フェルミ (Fermi, from the physicist Enrico Fermi) and 縮退 (degeneracy).