cationic

cation

[kat-ahy-uhn, -on]
noun Physical Chemistry.
1.
a positively charged ion that is attracted to the cathode in electrolysis.
2.
any positively charged atom or group of atoms (opposed to anion ).
Also, kation.


Origin:
1825–35; < Greek katión going down (neuter of katiṓn, present participle of kateînai), equivalent to kat- cat- + -i- go + -on neuter present participle suffix

cationic [kat-ahy-on-ik] , adjective
cationically, adverb
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World English Dictionary
cation (ˈkætaɪən)
 
n
Compare anion a positively charged ion; an ion that is attracted to the cathode during electrolysis
 
[C19: from cata- + ion]
 
cationic
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

cation
1834, from Gk. kation "going down," neut. prp. of katienai "to go down," from kata "down."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

cation cat·i·on (kāt'ī'ən)
n.
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.
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American Heritage
Science Dictionary
cation   (kāt'ī'ən)  Pronunciation Key 
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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