- a thin structural sheet made of iron or steel, formed with alternating ridges and troughs
WordReference Random House Unabridged Dictionary of American English © 2026
cor′rugated i′ron,
- Building, Metallurgya type of sheet iron or steel strengthened for use in construction by having a series of alternating grooves and ridges forced into it, and usually galvanized for weather resistance.
- 1885–90
Collins Concise English Dictionary © HarperCollins Publishers::
corrugated iron n
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