(a.) That may be squared, or reduced to an equivalent square; -- said of a surface when the area limited by a curve can be exactly found, and expressed in a finite number of algebraic terms.

Photostat Xerox biquadrate biquadratic clone copy counterpart ditto double dupe duplicate duplication facsimile fourfold hectograph make four manifold microcopy microfilm mimeo mimeograph model multigraph multiply by four quadrable quadrigeminal quadruple quadruplex reduplicate repetition replica replicate replication representation reproduce reproduction stat tetraploid trace transcribe triplicate