wrinkle 1
/ring"keuhl/ , n. , v. , wrinkled, wrinkling .
n.
1. a small furrow or crease in the skin, esp. of the face, as from aging or frowning.
2. a temporary slight ridge or furrow on a surface, due to contraction, folding, crushing, or the like.
v.t.
3. to form wrinkles in; corrugate; crease: Don't wrinkle your dress.
v.i.
4. to become wrinkled.
[ 1375-1425; late ME (n.), back formation from wrinkled, OE gewrinclod, ptp. of gewrinclian to wind round; perh. akin to WRICK, WRENCH ]
wrinkle 2
/ring"keuhl/ , n. Informal.
an ingenious trick or device; a clever innovation: a new advertising wrinkle.
[ 1375-1425; late ME, equiv. to wrinc trick (OE wrenc; see WRENCH) + -LE ]