Source : Webster's Revised Unabridged Dictionary (1913)

Crease \Crease\, v. t. [imp. & p. p. {Creased} (kr?st); p. pr. &
   vb. n. {Creasing}.]
   To make a crease or mark in, as by folding or doubling.

         Creased, like dog's ears in a folio.     --Gray.

Source : WordNet®

creased
     adj : having wrinkles; "crumpled paper"; "her skirt had become
           creased"; "a rumpled gray suit" [syn: {crumpled}, {rumpled}]