(Meth)acrylate[1] is a chemical notation that indicates that a compound has either an acrylate (CH2=CHCOO-) or a methacrylate (CH2=CMeCOO-) group.
(Meth)acrylate should not be confused with a methacrylate, (meth)acrylate is a broader term which encompasses methacrylates.