noun Date: 1626 a bed of soil enclosed in glass, heated especially by fermenting manure, and used for forcing or for raising seedlings, an environment that favors rapid growth or development
HOTBED
Meaning of HOTBED in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012