quadruplicate -- (any four copies; any of four things that correspond to one another exactly; "it was signed in quadruplicate")
Overview of verb quadruplicate
The verb quadruplicate has 1 sense
quadruplicate -- (reproduce fourfold; "quadruplicate the bill")
Overview of adj quadruplicate
The adj quadruplicate has 1 sense
quadruple, quadruplicate, quadruplex, fourfold, four-fold -- (having four units or components; "quadruple rhythm has four beats per measure"; "quadruplex wire")