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1. A heated greenhouse for plants that require an even, relatively warm temperature.
2. An environment conducive to vigorous growth or development; a hotbed: "With its mix of African, Latin, European, and pan-American influences, the Caribbean is truly a musical hothouse" (New Yorker).
1. Grown in a hothouse: a hothouse orchid.
2. Delicate and sensitive, as if from being grown in a hothouse.
tr.v. hot·housed, hot·hous·ing, hot·hous·es
To cultivate in a hothouse.
the practice of teaching children to high level at an earlier than usual agethe practice of providing intense, special training to young people who are good at sport, particularly football