cation
/ˈkætˌaɪ.ən/
Word Rarity
Rare
Frequency: 2.79 in modern English
8
Scrabble Score
6
Letters
3
Syllables
6
Unique Chars
Meaning
noun
A positively charged ion: one that would be attracted to the cathode in electrolysis.
Etymology
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.