hot ‧ bed /ˈhɒtbed $ ˈhɑːt-/ BrE AmE noun
a hotbed of something a place where a lot of a particular type of activity, especially bad or violent activity, happens:
the university was a hotbed of radical protest
hot ‧ bed /ˈhɒtbed $ ˈhɑːt-/ BrE AmE noun
a hotbed of something a place where a lot of a particular type of activity, especially bad or violent activity, happens:
the university was a hotbed of radical protest
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012