(a) A wrinkle in the skin, esp. of the face; a line, furrow; (b) a fold of skin on an animal; a ridge on the tail of a scorpion; a ridge or fold in the surface of an artery; a fold of bark on a tree……

(a) Wrinkling of the skin or nails; also, shriveling up of cherries; (b) a wrinkle on the skin; also fig.; (c) rippling of a water surface. …