Corrugated-iron
noun
1.
a 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.
noun
1.
a thin structural sheet made of iron or steel, formed with alternating ridges and troughs
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noun 1. heavy paper with ridges and grooves, used in packing fragile articles. noun 1. a packaging material made from layers of heavy paper, the top layer of which is grooved and ridged
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[kawr-uh-gey-shuh n, kor-] /ˌkɔr əˈgeɪ ʃən, ˌkɒr-/ noun 1. the act or state of or of being . 2. a wrinkle; fold; furrow; ridge. n. 1520s, from Latin *corrugationem, noun of action from past participle stem of corrugare (see corrugate).
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[kawr-uh-gey-shuh n, kor-] /ˌkɔr əˈgeɪ ʃən, ˌkɒr-/ noun 1. the act or state of or of being . 2. a wrinkle; fold; furrow; ridge. n. 1520s, from Latin *corrugationem, noun of action from past participle stem of corrugare (see corrugate).
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[verb kawr-uh-geyt, kor-; adjective kawr-uh-git, -geyt, kor-] /verb ˈkɔr əˌgeɪt, ˈkɒr-; adjective ˈkɔr ə gɪt, -ˌgeɪt, ˈkɒr-/ verb (used with object), corrugated, corrugating. 1. to draw or bend into folds or alternate furrows and ridges. 2. to wrinkle, as the skin or face. 3. Western U.S. to make irrigation ditches in (a field). verb (used […]
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corrugator muscle n. A muscle with origin from the orbital portion of the orbicular muscle, with insertion to the skin of the eyebrow, with nerve supply from the facial nerve, and whose action draws the medial end of the eyebrow downward and wrinkles the forehead vertically.