D defs.my
Entry 2 senses · 2 variants Webster, 1913

Corrugate

/(k?r"r?-g?t)/ · Cor·ru·gate · IPA /ˈkɔɹ.əˌɡeɪt/
01 a. Wrinkled; crumpled; furrowed; contracted into ridges and furrows.
  1. 1.
    Wrinkled; crumpled; furrowed; contracted into ridges and furrows.
02 v. t. To form or shape into wrinkles or folds, or alternate ridges and grooves, as by drawing, contraction, pressure, bending, or otherwise; to w…
imp. & p. p. Corrugated; p. pr. & vb. n. Corrugating
  1. 1.
    To form or shape into wrinkles or folds, or alternate ridges and grooves, as by drawing, contraction, pressure, bending, or otherwise; to wrinkle; to purse up; as, to corrugate plates of iron; to corrugate the forehead.
Phrases & compounds
Corrugated iron — sheet iron bent into a series of alternate ridges and grooves in parallel lines, giving it greater stiffness.
Corrugated paper — a thick, coarse paper corrugated in order to give it elasticity. It is used as a wrapping material for fragile articles, as bottles.