malodour malodour /ˈmæloʊˌdʊər/

noun

1. [Canadian, British] A distinctive odor that is offensively unpleasant  ( fetor , foetor [British] , malodor [American] , malodour [Canadian, British] , mephitis , reek , stench , stink )
   a distinctive odor that is offensively unpleasant