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2 definitions found

From: Webster's Revised Unabridged Dictionary (1913)

 Cor·ru·gate v. t. [imp. & p. p. Corrugated p. pr. & vb. n. Corrugating ] 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.
 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.
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From: WordNet (r) 2.0

 corrugated iron
      n : usually galvanized sheet iron or sheet steel shaped into
          straight parallel ridges and hollows