First Known Use: circa 1834
Dictionary
ion
noun \ˈī-ən, ˈī-ˌän\
: an atom or group of atoms that has a positive or negative electric charge from losing or gaining one or more electrons
Full Definition of ION
1
: an atom or group of atoms that carries a positive or negative electric charge as a result of having lost or gained one or more electrons
2
: a charged subatomic particle (as a free electron)
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Origin of ION
Greek, neuter of iōn, present participle of ienai to go — more at issue
Other Chemical Engineering Terms
Ion
abbreviation
Definition of ION
Ionic
ION Defined for Kids
ion
noun \ˈī-ən, ˈī-ˌän\
Definition of ION for Kids
: an atom or group of atoms that carries an electric charge
Medical Dictionary
ion
noun \ˈī-ən, ˈī-ˌän\
Medical Definition of ION
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