[ kat-ahy-uhn, -on ]
/ ˈkætˌaɪ ən, -ɒn /
noun Physical Chemistry.
a positively charged ion that is attracted to the cathode in electrolysis.
any positively charged atom or group of atoms (opposed to anion).
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Origin of cation
1825–35; <Greek katión
going down (neuter of katiṓn,
present participle of kateînai
), equivalent to kat- cat-
go + -on
neuter present participle suffix
OTHER WORDS FROM cationcat·i·on·ic [kat-ahy-on-ik], /ˌkæt aɪˈɒn ɪk/, adjectivecat·i·on·i·cal·ly, adverb
Words nearby cation
, cation exchange
, cation-exchange resin
, cationic detergent
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for cation
And Wiener announced on Thursday her intent to take a “little twit-cation.”
Bobby wondered if Richard wouldn't grow up before they did, he was so much bigger, and then what would become of his edge-cation?
I haven't a doubt but what you'll have a curly-tailed edge-cation all right, Bobby, when the time comes, pigs or no pigs.
This is the cli—cli—climax of Eas—Eas—Easter vac—c—c—c—c—cation!
a positively charged ion; an ion that is attracted to the cathode during electrolysisCompare anion
Derived forms of cationcationic (ˌkætaɪˈɒnɪk), adjective
Word Origin for cation
C19: from cata- + ion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
An ion or group of ions having a positive charge and characteristically moving toward the negative electrode in electrolysis.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
An ion with net positive charge, having more protons than electrons. In electrolysis, cations migrate to a negatively charged cathode. Compare anion.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.