# ion
## English
### Etymology 1

From the ending of anion and cation, which in turn is from Ancient Greek ἰόν (ión, “going”), neuter present participle of εἶμι (eîmi, “I go”). Coined by English polymath William Whewell in 1834 for Michael Faraday, who introduced it later that year.

#### Pronunciation

* (UK) enPR: ī'ən, IPA: /ˈaɪən/; enPR: ī'ŏn, IPA: /ˈaɪ.ɒn/
* (US) enPR: ī'ŏn, IPA: /ˈaɪ.ɑn/
* Audio (US):(file)
* Rhymes: (UK) -aɪən, (UK) -aɪɒn
* Homophone: iron (in some accents only)

#### Noun

ion (plural ions)
* An atom or group of atoms bearing an electrical charge, such as the sodium and chlorine atoms in a salt solution.
    Hyponyms: (cardinal types) anion (−); cation (+); for many more, see Derived terms

##### Derived terms

* alkanium ion
* amidium ion
* aminium ion
* anion
* arenium ion
* arenonium ion
* arsanylium ion
* autoion
* benzenium ion
* benzenonium ion
* bromonium ion
* byion
* carbenium ion
* carbonium ion
* cation
* chloronium ion
* coion
* common-ion effect
* complex ion
* counterion
* dipolar ion
* fluoronium ion
* gegenion
* halonium ion
* heavy ion
* hydrogen ion
* hydronium ion
* iodonium ion
* ion carrier
* ion channel
* ion channelopathy
* ion chromatography
* ion engine
* ion exchange
* ion exchange chromatography
* ion exchange resin
* ionic
* ionise, ionize
* ion milling
* ion mirror
* ionogenic
* ionome
* ion selective electrode
* ion-selective electrode
* ion-selective membrane
* ion storm
* ion trap
* ion wind
* Li-ion
* lithium ion battery
* lithium-ion battery
* macroion
* microion
* multiion
* nebenion
* oxoion
* oxonium ion
* oxylium ion
* photoion
* polyion
* radical ion
* secondary ion mass spectrometry
* spectator ion
* sulphion
* t
* thermion

##### Translations
### Etymology 2

From a reduction of I don't.

#### Pronunciation

* IPA: /ˈaɪˌoʊn/

#### Phrase

ion
* (African-American Vernacular, slang) I don't.
    ion know what 2 doI don't know what to do
    ion want 2I don't want to

### Anagrams

* oni, NOI, Ino, ONI, NIO, -ino

## Czech
### Alternative forms

* iont

### Pronunciation

* IPA: [ˈjon]
* IPA: [ˈɪjon]
* IPA: [ˈjoːn]
* IPA: [ˈɪjoːn]

### Noun

ion m inan
* ion

#### Declension
### Further reading

* “ion”, in Příruční slovník jazyka českého (in Czech), 1935–1957
* “ion”, in Slovník spisovného jazyka českého (in Czech), 1960–1971, 1989
* ion in Akademický slovník cizích slov, 1995, at prirucka.ujc.cas.cz

## Danish
### Alternative forms

* jon

### Etymology

From Ancient Greek ἰόν (ión, “going”).

### Noun

ion (singular definite ionen, plural indefinite ioner)
* (chemistry, physics) an ion

#### See also

* ionisere

### References

* “ion” in Den Danske Ordbog

## Dutch
### Etymology

Borrowed from English ion.

### Pronunciation

* IPA: /iˈɔn/, /jɔn/
* Audio:(file)
* Hyphenation: ion
* Rhymes: -ɔn

### Noun

ion n (plural ionen)
* ion (charged atom or compound)

#### Derived terms

* ioniseren

## Esperanto
### Pronunciation

* IPA: [ˈion]
* Audio:(file)
* Rhymes: -ion
* Hyphenation: i‧on

### Pronoun

ion
* accusative singular of io

## French
### Etymology

English ion.

### Pronunciation

* IPA: /jɔ̃/, /i.ɔ̃/
* Audio:(file)

### Noun

ion m (plural ions)
* (chemistry, physics) ion

### Further reading

* “ion”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

## Japanese
### Romanization

ion
* Rōmaji transcription of いおん
* Rōmaji transcription of イオン

## Norwegian Bokmål
### Etymology

From Ancient Greek ἰόν (ión, “going”).

### Noun

ion n (definite singular ionet, indefinite plural ioner, definite plural iona or ionene)
* (chemistry, physics) an ion

#### Derived terms

* ionisk
* ionosfære

### References

* “ion” in The Bokmål Dictionary.

## Norwegian Nynorsk
### Etymology

From Ancient Greek ἰόν (ión, “going”).

### Noun

ion n (definite singular ionet, indefinite plural ion, definite plural iona)
* (chemistry, physics) an ion

#### Derived terms

* ionisk
* ionosfære

### References

* “ion” in The Nynorsk Dictionary.

## Romanian
### Etymology

Borrowed from French ion.

### Noun

ion m (plural ioni)
* ion

#### Declension
## Spanish
### Alternative forms

* ión (superseded spelling)

### Pronunciation

* IPA: /ˈʝon/ [ˈɟ͡ʝõn], /iˈon/ [iˈõn]
* IPA: (everywhere but Argentina and Uruguay) /ˈʝon/ [ˈɟ͡ʝõn], /iˈon/ [iˈõn]
* IPA: (Argentina and Uruguay) /ˈjon/ [ˈjõn], /iˈon/ [iˈõn]
* Rhymes: -on
* Syllabification: ion, i‧on

### Noun

ion m (plural iones)
* ion (atom or group of atoms bearing an electrical charge)

### Further reading

* “ion”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10

## Vietnamese
### Etymology

From French ion, from English ion.

### Pronunciation

* (Hà Nội) IPA: [ʔi˧˧ ʔɔn˧˧], [ʔi˧˧ ʔəwŋ͡m˧˧]
* (Huế) IPA: [ʔɪj˧˧ ʔɔŋ˧˧], [ʔɪj˧˧ ʔəwŋ͡m˧˧]
* (Saigon) IPA: [ʔɪj˧˧ ʔɔŋ˧˧], [ʔɪj˧˧ ʔəwŋ͡m˧˧]
* Phonetic spelling: i on, i ông

### Noun

ion
* an ion

### See also

* ion hoá