Po*lyg"ra*phy (?), n. [Gr. &?;; poly`s much + gra`fein to write: cf. F. polygraphie.] 1. Much writing; writing of many books. [Obs.] Fuller.

2. The art of writing in various ciphers, and of deciphering the same. [R.]

3. The art or practice of using a polygraph.