cor‧ru‧gated /ˈkɒrəɡeɪtəd, ˈkɒrəɡeɪtɪd $ ˈkɔː-, ˈkɑː-/
adjective[
Date: 1600-1700;
Language: Latin;
Origin: past participle of corrugare, from com- ( ⇒ COM-) + ruga 'line in a surface, wrinkle']
in the shape of waves or folds, or made like this in order to give something strength:
corrugated cardboard [TahlilGaran] Dictionary of Contemporary English ▲