periodic acid

American

[pur-ahy-od-ik, pur-] / ˈpɜr aɪˈɒd ɪk, ˌpɜr- /

noun

Chemistry.

any of a series of acids derived from I 2 O 7 by the addition of water molecules, as HIO 4 or H 5 IO 6 .

periodic acid British

/ ˌpɜːraɪˈɒdɪk /

noun

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 HIO 4 ( metaperiodic acid ) and H 5 IO 6 ( paraperiodic acid )

"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

Etymology

Origin of periodic acid

First recorded in 1830–40

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Magnus; periodic acid, discovered by the latter, is characterized by the striking complexity of its salts as pointed out by Kimmins.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" by Various

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023