[ an-ahy-uhn ]
/ ˈænˌaɪ ən /
noun Physical Chemistry.
a negatively charged ion, as one attracted to the anode in electrolysis.
any negatively charged atom or group of atoms (opposed to cation).
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Origin of anion
1825–35; <Greek, neuter of aniṓn
going up (present participle of aniénai
to go up), equivalent to an-an-3
go + -ōn
present participle suffix
OTHER WORDS FROM anionan·i·on·ic [an-ahy-on-ik], /ˌæn aɪˈɒn ɪk/, adjectivean·i·on·i·cal·ly, adverb
Words nearby anion
, animis opibusque parati
, anion exchange
, anion-exchange resin
, anion gap
, anionic detergent
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for anion
It will be noticed that in neutralization the anion of the acid and the cation of the base are not changed.
The king repaired in state to the temple of Anion, seized the priests who professed these seditious beliefs, and burnt them alive.
The Nile beyond surrounded an island, where flourished the well-kept sacred grove of Anion.
In a few minutes the priest of Anion and the chief of the kolchytes were being carried towards the valley in their litters.
a negatively charged ion; an ion that is attracted to the anode during electrolysisCompare cation
Derived forms of anionanionic (ˌænaɪˈɒnɪk), adjective
Word Origin for anion
C19: from ana- + 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
A negatively charged ion, especially one that migrates to the anode in electrolysis.
Other words from anionan′i•on′ic (-ŏn′ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
An ion with net negative charge, having more electrons than protons. In electrolysis, anions migrate to a positively charged anode. Compare cation.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.