Verb: corrugate 'kor-u,geyt or 'kór-u,geyt [N. Amer], 'kó-ru,geyt [Brit]- Form or shape into ridges and grooves
"They corrugate metal sheets for roofing"
Derived forms: corrugates, corrugating, corrugated
Type of: fold, fold up, turn up
Encyclopedia: Corrugate