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Webster 1913 Edition

Adj.

[Pref.

per-

chloric

(Chem.)

Pertaining to, or designating, the highest oxygen acid (

HClO4

), of chlorine; – called also

hyperchloric

Adj.

Perchloric acid is chlorine converted into an acid by combining with a maximum of oxygen.

perchloric ‎(not comparable)

(chemistry) Describing compounds containing the most highly oxidized state of chlorine

type of compound