wrinkle

n.

  1. A winkle.
  2. A small ridge, prominence, or furrow formed by the shrinking or contraction of any smooth substance; a corrugation; a crease; a slight fold; as, wrinkle in the skin; a wrinkle in cloth.
  3. hence, any roughness; unevenness.
  4. A notion or fancy; a whim; as, to have a new wrinkle.

v. t.

  1. To contract into furrows and prominences; to make a wrinkle or wrinkles in; to corrugate; as, wrinkle the skin or the brow.
  2. Hence, to make rough or uneven in any way.

v. i.

  1. To shrink into furrows and ridges.