| corrugate | (v) fold into ridges, Example: corrugate iron |
| corrugated board | (n) cardboard with corrugations (can be glued to flat cardboard on one or both sides), Syn. corrugated cardboard |
| corrugated fastener | (n) a small strip of corrugated steel with sharp points on one side; hammered across wood joints in rough carpentry, Syn. wiggle nail |
| corrugated iron | (n) usually galvanized sheet iron or sheet steel shaped into straight parallel ridges and hollows |
| corrugation | (n) a ridge on a corrugated surface |
| corrugation | (n) the act of shaping into parallel ridges and grooves |
| Corrugate | v. t.
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| Corrugate | a. [ L. corrugatus, p. p. of corrugare; cor-+ rugare to wrinkle, ruga wrinkle; of uncertain origin. ] Wrinkled; crumpled; furrowed; contracted into ridges and furrows. [ 1913 Webster ] |
| corrugated | adj. shaped into parallel folds alternately grooved and ridged; |
| Corrugation | n. [ Cf. F. corrugation. ] The act corrugating; contraction into wrinkles or alternate ridges and grooves. [ 1913 Webster ] |
| Corrugator | n. [ NL.; cf. F. corrugateur. ] (Anat.) A muscle which contracts the skin of the forehead into wrinkles. [ 1913 Webster ] |