plicature

Dū′plicature, a doubling: anything doubled: the fold of a membrane; Duplic′ity, doubleness: insincerity of heart or speech: deceit; Dū′ply, a second reply in Scots law.—The duplication of the cube was a problem eagerly discussed by the early Greek geometers.

Fold -- N. fold, plicature†, plait, pleat, ply, crease; tuck, gather; flexion, flexure, joint, elbow, double, doubling, duplicature†, gather, wrinkle, rimple†, crinkle, crankle†, crumple, rumple, rivel†, ruck†, ruffle, dog's ear, corrugation, frounce†, flounce, lapel; pucker, crow's feet; plication†.