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)

Origin of ION

Greek, neuter of iōn, present participle of ienai to go — more at issue
First Known Use: circa 1834

Other Chemical Engineering Terms

alkali, cation, decant, hygroscopic, isotope, oxidize, slurry, solute, viscous

Rhymes with ION

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

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—see anion, cation
2
:  a charged subatomic particle (as a free electron)
July 03, 2015
interpellate Hear it
to formally question a public official
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