ion

1 of 3

noun

ˈī-ən  ˈī-ˌän 

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 (such as a free electron)

Ion

2 of 3

abbreviation

Ionic

-ion

3 of 3

noun suffix

1

a

: act or process

validation

b

: result of an act or process

regulation

2

: state or condition

hydration

Examples of ion in a Sentence

Recent Examples on the Web

Noun

Graham King, in a reported seven-figure deal, tried to launch a Liefeld-verse with characters from the creator’s Extreme Studios imprint ion 2017. —Borys Kit, The Hollywood Reporter, 13 Dec. 2024

Positive ions cause frizz, so the negative ions help to rebalance and unruffle hair while breaking down water molecules for faster air drying. —Hyphensocial Contributors, Rolling Stone, 6 Dec. 2024

This indicated that the animals were experiencing some internal signals of their deprived state, and potentially craved salt as a way to boost their blood volume without diluting ion levels. —Lauren Leffer, Popular Science, 28 Nov. 2024

Dream takes all of those benefits up a notch using extra high-quality silk infused with antibacterial silver ions. —Corey Buhay, Outside Online, 23 Nov. 2024

Word History

Etymology

Noun

Greek, neuter of iōn, present participle of ienai to go — more at issue entry 1

Noun suffix

French -ion, from Latin -ion-, -io

First Known Use

Noun

circa 1834, in the meaning defined at sense 1

Phrases Containing ion

• hydrogen ion
• ion channel
• ion engine
• ion exchange
• ion exchange resin
• lithium-ion battery

Kids Definition

ion

1 of 2 noun

ˈī-ən 

ˈī-ˌän

: 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

-ion

2 of 2 noun suffix

1

a

: act or process

validation

b

: result of an act or process

regulation

2

: state or condition

hydration

Etymology

Noun suffix

derived from Latin -ion (suffix) "act or process"

Medical Definition

ion

noun

ˈī-ən  ˈī-ˌän 

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)