Meanings
Synonyms & antonyms
nounA negatively charged ion.
Opposite
Origin
- Proto-Indo-European*h₂en-
- Proto-Hellenic*aná
- Ancient Greekᾰ̓νᾰ́ (ănắ)
- Ancient Greekᾰ̓νᾰ- (ănă-)
- Proto-Indo-European*h₁ey-
- Proto-Indo-European*h₁éyti
- Proto-Hellenic*éimi
- Ancient Greekῐ̓όν (ĭón)
- Ancient Greekἀνῐόν (anĭón)
- Englishanion
Learned borrowing from Ancient Greek ἀνιόν (anión, “(thing) going up”), neuter present participle of ἄνειμι (áneimi, “go up”), from ἀνά (aná, “up”) + εἶμι (eîmi, “go”). Coined by English polymath William Whewell in 1834 for Michael Faraday, who introduced it later that year. By surface analysis, an- (“up, away, forward”) + ion.
More words from Ancient Greek
Full word history & related roots →Translations
Bengali ঋণাত্মক আয়ন
- ঋণাত্মক আয়ন (rinattok aẏon)negatively charged ion
Bulgarian анио́н
- анио́н (anión)negatively charged ion
Catalan anió
- aniónegatively charged ion
Chinese Mandarin 陰離子 /阴离子
- 陰離子 /阴离子 (yīnlízǐ)negatively charged ion
Czech aniont
- aniontnegatively charged ion
Dutch anion
- anionnegatively charged ion
Esperanto anjono
- anjononegatively charged ion
Finnish anioni
- anioninegatively charged ion
French anion
- anionnegatively charged ion
German Anion
- Anionnegatively charged ion
Greek ανιόν
- ανιόν (anión)negatively charged ion
Hungarian anion
- anionnegatively charged ion
Irish ainian
- ainiannegatively charged ion
Italian anione
- anionenegatively charged ion
Japanese 陰イオン, アニオン
- 陰イオン (in-ion)negatively charged ion
- アニオン (anion)negatively charged ion
Korean 음이온
- 음이온 (eumion)negatively charged ion
Polish anion
- anionnegatively charged ion
Portuguese ânion, anião
- ânionnegatively charged ion
- aniãonegatively charged ion
- aníonnegatively charged ion
- aniontenegatively charged ion
Russian анио́н
- анио́н (anión)negatively charged ion
Spanish anión
- aniónnegatively charged ion
Swedish anjon
- anjonnegatively charged ion
Tagalog tahapik
- tahapiknegatively charged ion
Turkish anyon
- anyonnegatively charged ion
Ukrainian аніо́н
- аніо́н (anión)negatively charged ion
Vietnamese ly tử âm
- ly tử âmnegatively charged ion
Welsh anïon
- anïonnegatively charged ion
Cite this entry
APA
anion. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/anion
MLA
“anion.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/anion. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “anion,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/anion.
Source: anion on Wiktionary, CC BY-SA 4.0.