Definition: An oxyacid is an acid that contains an oxygen atom bonded to a hydrogen atom and at least one other element.
Also Known As: oxoacid
Examples:Sulfuric acid (H2SO4), phosphoric acid (H3PO4), and nitric acid (HNO3) are all oxyacids.
By Anne Marie Helmenstine, Ph.D., About.com Guide
Phosphoric acid is an oxyacid.Ben Mills/PD