cation

C3A1T1I1O1N1
/ˈkætˌaɪ.ən//ˈkætˌaɪ.ɑn/

noun

A positively charged ion: one that would be attracted to the cathode in electrolysis.

Opposite
Less commonScrabble 8

Meanings

nouncation (plural cations)

plural cations · alternative archaic kation

  1. 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.

Opposite

Origin

  1. Ancient Greekκᾰτῐόν
  2. 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.

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
APA

cation. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/cation

MLA

“cation.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cation. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “cation,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/cation.

Source: cation on Wiktionary, CC BY-SA 4.0.