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Related to cation: anion
An ion or group of ions having a positive charge and characteristically moving toward the negative electrode in electrolysis.
[Greek kation, something going down, from neuter present participle of katienai, to go down : kat-, kata-, cata- + ienai, to go; see ei- in Indo-European roots.]
cat′i·on′ic (kăt′ī-ŏn′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(General Physics) a positively charged ion; an ion that is attracted to the cathode during electrolysis. Compare anion
[C19: from cata- + ion]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
cat•i•on(ˈkætˌaɪ ən, -ɒn)
1. a positively charged ion that is attracted to the cathode in electrolysis.
2. any positively charged ion (opposed to anion).
[1825–35; < Greek katión, neuter of katiṓn, present participle of kateînai to go down =kat- cat- + eînai to go]
cat`i•on′ic (-ˈɒn ɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
An ion that has a positive charge. Hydrogen and ammonium ions are cations. Compare anion.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
An ion that carries a positive charge, which is attracted by the negatively charged electrode, the cathode, during electrolysis.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
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|Noun||1.||cation - a positively charged ion|
hydrogen ion - a positively charged atom of hydrogen; that is to say, a normal hydrogen atomic nucleus
ion - a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons
diazonium - the univalent cation R-N:N- (where R is an aromatic hydrocarbon); found in salts that are used in manufacturing azo dyes
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