As nouns the difference between esper and psion
is that esper is a person supposed to have paranormal abilities while psion is the psi-meson, a sub-atomic particle.
esper
Noun
(
en noun)
A person supposed to have paranormal abilities.
Anagrams
*
psion
English
Noun
(
en noun)
The psi-meson, a sub-atomic particle.
Someone psionic. i.e. Someone exhibiting conscious control of psychic, telepathic, or paranormal phenomena.
A character in a Role Playing Game (RPG) using psionics
.