anion
[ an-ahy-uhn ]
/ ˈænˌaɪ ən /
Save This Word!
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).
QUIZZES
QUIZ YOURSELF ON “ITS” VS. “IT’S”!
Apostrophes can be tricky; prove you know the difference between it’s and its in this crafty quiz!
Question 1 of 12
On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.
Origin of anion
1825–35; <Greek, neuter of aniṓn going up (present participle of aniénai to go up), equivalent to an-an-3 + -i- go + -ōn present participle suffix
OTHER WORDS FROM anion
an·i·on·ic [an-ahy-on-ik], /ˌæn aɪˈɒn ɪk/, adjectivean·i·on·i·cal·ly, adverbWords nearby anion
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for anion
British Dictionary definitions for anion
anion
/ (ˈænˌaɪən) /
noun
a negatively charged ion; an ion that is attracted to the anode during electrolysisCompare cation
Derived forms of anion
anionic (ˌænaɪˈɒnɪk), adjectiveWord 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
Medical definitions for anion
anion
[ ăn′ī′ən ]
n.
A negatively charged ion, especially one that migrates to the anode in electrolysis.
Other words from anion
an′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.
Scientific definitions for anion
anion
[ ăn′ī′ən ]
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.