hotbedPronunciation: /ˈhɒtbɛd/Translate hotbed | into French | into German | into Italian | into Spanish Definition of hotbed noun 1an environment promoting the growth of something, especially something unwelcome:the country was a hotbed of revolt and dissension 2a bed of earth heated by fermenting manure, for raising or forcing plants. hotbed in other Oxford dictionaries Definition of hotbed in the US English dictionary