Definitions for "Electron degeneracy pressure"
The pressure produced by the resistance of electrons to compression once they are squeezed to the point of contact.
The pressure produced by the resistance of electrons to compression once they are squeezed to the point where quantum effects become important.
this is a pressure created by closely-packed electrons. No two electrons can occupy the same state in a star, which creates a pressure against collapse, but only to a point. See Chandraskar limit for more.