'HIO4' definitions:
Definition of 'HIO4'
From: GCIDE
- Periodic \Per`i*od"ic\ (p[~e]r`[-i]*[o^]d"[i^]k), a. [Pref. per- + iodic.] (Chem.) Pertaining to, derived from, or designating, the highest oxygen acid (HIO4) of iodine. [1913 Webster] Periodic