Noun | 1. | ![]() macintosh, mackintosh - a lightweight waterproof (usually rubberized) fabric oilskin, slicker - a macintosh made from cotton fabric treated with oil and pigment to make it waterproof raincoat, waterproof - a water-resistant coat Britain, Great Britain, U.K., UK, United Kingdom, United Kingdom of Great Britain and Northern Ireland - a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom |