(n.) 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.
(n.) hence, any roughness; unevenness.
(n.) A notion or fancy; a whim; as, to have a new wrinkle.
(v. t.) To contract into furrows and prominences; to make a wrinkle or wrinkles in; to corrugate; as, wrinkle the skin or the brow.
(v. t.) Hence, to make rough or uneven in any way.