periodic acidper·i·od·ic acid
a white crystalline solid, HIO, formed by careful oxidation of iodine or iodic acid: it is a strong oxidizing agent
Origin of periodic acidper- + iodic
A white, crystalline inorganic acid, HIO4·2H2O, used as an oxidizer.
(plural periodic acids)
- Note that the pronunciation of the first word of this term is different from that of "periodic" in the sense of "recurring in periods".