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periodic acid

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

noun Chemistry.

any of a series of acids derived from I2O7 by the addition of water molecules, as HIO4 or H5IO6.

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Nearby words

period of revolution, period piece, period-luminosity relation, periodate, periodic, periodic acid, periodic acid-schiff, periodic attractor, periodic decimal, periodic disease, periodic function

Origin of periodic acid

First recorded in 1830–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for periodic acid

periodic acid

/ (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)

Word Origin for periodic acid

C19: from per- + iodic
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

Medicine definitions for periodic acid

periodic acid

[ pûr′ī-ŏd′ĭk ]

n.

A white, crystalline inorganic acid that contains iodine and is used as an oxidizer.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.