Meanings
plural cations · alternative archaic kation
- physicalchemistryA positively charged ion: one that would be attracted to the cathode in electrolysis.
Antonyms: anion
Synonyms & antonyms
nounA positively charged ion: one that would be attracted to the cathode in electrolysis.
Origin
- Ancient Greekκᾰτῐόν
- Englishcation
Learned borrowing from Ancient Greek κᾰτῐόν (kătĭón), neuter present participle of κᾰ́τειμῐ (kắteimĭ, “to go down, come down”), from κᾰτᾰ- (kătă-, “downwards, down, cata-”) + εἶμῐ (eîmĭ, “to go, come”). Coined by English polymath William Whewell in 1834 for Michael Faraday, who introduced it later that year. By surface analysis, cat(a)- + ion.
More words from Ancient Greek
Full word history & related roots →Translations
Basque katioi
- katioiTranslations
Bengali ধনাত্মক আয়ন
- ধনাত্মক আয়ন (dhonattok aẏon)Translations
Brazilian Portuguese cátion
- cátionTranslations
Bulgarian катион
- катион (kation)Translations
Catalan catió
- catióTranslations
Chinese Mandarin 陽離子 /阳离子, 正離子 /正离子
- 陽離子 /阳离子 (yánglízi)Translations
- 正離子 /正离子 (zhènglízǐ)Translations
Czech kationt
- kationtTranslations
Dutch kation
- kationTranslations
Esperanto katjono
- katjonoTranslations
European Portuguese catião
- catiãoTranslations
Finnish kationi
- kationiTranslations
French cation
- cationTranslations
German Kation
- KationTranslations
Greek κατιόν
- κατιόν (katión)Translations
Hungarian kation
- kationTranslations
Italian catione
- cationeTranslations
Japanese 陽イオン, カチオン
- 陽イオン (yō ion)Translations
- カチオン (kachion)Translations
Korean 양이온
- 양이온 (yang'ion)Translations
Persian کاتیون
- کاتیون (kâtiyon)Translations
Polish kation
- kationTranslations
Romanian cation
- cationTranslations
Russian катио́н
- катио́н (katión)Translations
Spanish catión
- catiónTranslations
Swedish katjon
- katjonTranslations
Tagalog balipik
- balipikTranslations
Turkish katyon
- katyonTranslations
Ukrainian катіо́н
- катіо́н (katión)Translations
Vietnamese ly tử dương
- ly tử dươngTranslations
Welsh catïon
- catïonTranslations
Rhymes & wordplay
Anagrams
Cite this entry
cation. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/cation
“cation.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cation. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “cation,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/cation.
Source: cation on Wiktionary, CC BY-SA 4.0.