1. A waterproof garment made from cotton fabric treated with oil and pigment
   "The fisherman donned his oilskin jacket before heading out to sea";
   - slicker [N. Amer]

Derived forms: oilskins

Type of: mac [Brit, informal], macintosh [Brit], mack [Brit, informal], mackintosh [Brit]

Encyclopedia: Oilskin