#1 quadruplicate n. any four copies; any of four things that correspond to one another exactly; "it was signed in quadruplicate". wn
#2 quadruplicate v. reproduce fourfold; "quadruplicate the bill". wn
#3 quadruplicate s. [quadruple, quadruplex, fourfold, four-fold] having four units or components; "quadruple rhythm has four beats per measure"; "quadruplex wire". wn
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