As nouns the difference between pion and ion
is that pion is pion while ion is ion (electrically charged atom).
pion
Noun
(
en noun)
(particle) Any of three semistable mesons, having positive, negative or neutral charge, composed of up and down quarks]]/[[antiquark, antiquarks.
Synonyms
* pi meson
Anagrams
*
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ion
Noun
(
en noun)
An atom or group of atoms bearing an electrical charge such as the sodium and chlorine atoms in a salt solution.
Derived terms
* anion
* autoion
* byion
* cation
* coion
* counterion
* gegenion
* ionic
* ionise, ionize
* ionogenic
* ionome
* macroion
* microion
* multiion
* nebenion
* photoion
* polyion
* sulphion
* thermion