periodic acid

[ pur-ahy-od-ik, pur- ]

noun

, Chemistry.

1. 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

/ ˌpɜːraɪˈɒdɪk /

noun

1. 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 History and Origins

Origin of periodic acid¹

First recorded in 1830–40

Word History and Origins

Origin of periodic acid¹

C19: from per- + iodic