[wrin.kle] n [ME, back-formation fr. wrinkled twisted, winding, prob. fr. OE gewrinclod, pp. of gewrinclian to wind, fr. ge-, perfective prefix + -wrinclian (akin to wrencan to wrench)--more at co-] (15c) 1: a small ridge or furrow esp. when formed on a surface by the shrinking or contraction of a smooth substance: crease; specif: one in the skin esp. when due to age, worry, or fatigue
2. a: method, technique b: a change in a customary procedure or method c: something new or different: innovation
3: imperfection, irregularity -- wrin.kly adj
[2]wrinkle vb wrin.kled ; wrin.kling vi (1523): to become marked with or contracted into wrinkles ~ vt: to contract into wrinkles: pucker