hydronium
(redirected from Oxidanium)Also found in: Medical, Encyclopedia.
hy·dro·ni·um
(hī-drō′nē-əm)n.
A hydrated hydrogen ion, H3O+. Also called hydronium ion.
[hydr(o)- + (amm)onium.]
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.