mackintosh

noun3

1. •
   A waterproof long coat made of rubberized cloth.
2. •
   Any waterproof coat or raincoat.

   • John had great big waterproof boots on; John had a great big waterproof hat; John had a great big waterproof mackintosh -- And that (Said John) is that. — 1924
3. •
   Waterproof rubberized cloth.