From Longman Dictionary of Contemporary Englishmackintoshmack‧in‧tosh /ˈmækɪntɒʃ $ -tɑːʃ/ noun [countable] British English old-fashioned DCCa coat which you wear to keep out the rain SYN mac, raincoat
Examples from the Corpus
mackintosh• He did, however, offer to make me a mackintosh.• Francie had taken his fiddle and gone off about his own business in his Easter Rising trilby and mackintosh.• Blue dusk began to blur shapes together, but the beige mackintosh was visible.• The beige mackintosh was embraced by a blue one.• Tom handed him his mackintosh and nodded.• It blinded Willie and trickled down inside the collar of his mackintosh.• I put on my plain black dress and put my mackintosh on over it.• Weatheralls had a shop there - mackintosh people - with a deep doorway.Origin mackintosh (1800-1900) Charles Macintosh (1766-1843), Scottish scientist who invented a way of preventing liquid from getting through cloth 