[de.cal.co.ma.nia] n [F decalcomanie, fr. decalquer to copy by tracing (fr. de- de- + calquer to trace, fr. It calcare, lit., to tread, fr. L) + manie mania, fr. LL mania--more at caulk] (1864) 1: the art or process of transferring pictures and designs from specially prepared paper (as to glass)
2: decal