a heated greenhouse in which plants that need protection from cold weather are grown: [as modifier]:hothouse plants
an environment that encourages rapid growth or development, especially in a stifling or intense way: [as modifier]:the hothouse atmosphere of the college
verb
[with object]
educate or teach (a child) to a high level at an earlier age than is usual:a school that had a reputation for hothousing its girls
hothouse in other Oxford dictionaries
Definition of hothouse in the US English dictionary