I. ˈkȯrəˌgāt, ˈkär- sometimes -ryə-; usu -ād.+V verb
( -ed/-ing/-s )
Etymology: Latin corrugatus, past participle of corrugare, from com- + rugare to wrinkle, from ruga wrinkle — more at rough
transitive verb
: to form or contract into wrinkles or folds
corrugated his brows in thought — John Buchan
: shape into alternating ridges and grooves : furrow
the wind corrugates the surface of the sea
the roots corrugated the path
specifically : to shape (sheet metal or other material) into straight, parallel, regular, and equally curved ridges and hollows
intransitive verb
: to become corrugated
surfaces speedily rutted and corrugated — N.C.Rockwood
II. -_gə̇t adjective
Etymology: Latin corrugatus
archaic : corrugated