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Related to periodic acid: Periodic acid Schiff
A white, crystalline inorganic acid, HIO4·2H2O, used as an oxidizer.
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.
(Elements & Compounds) any of various oxyacids of iodine containing a greater proportion of oxygen than iodic acid and differing from each other in water content, esp either of the crystalline compounds HIO4 (metaperiodic acid) and H5IO6 (paraperiodic acid)
[C19: from per- + iodic]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
per′i•od′ic ac′id(ˈpɜr aɪˈɒd ɪk, ˌpɜr-)
any of a series of acids derived from I2O7 by the addition of water molecules, as HIO4 or H5IO6.
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