peroxyacid

[ puh-rok-see-as-id ]
/ pəˌrɒk siˈæs ɪd /

noun Chemistry.

an acid derived from hydrogen peroxide and containing the –O–O– group, as peroxysulfuric acid, H2S2O8.

Origin of peroxyacid

First recorded in 1960–65; peroxy- + acid