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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.


1. (Botany)
a. a greenhouse in which the temperature is maintained at a fixed level above that of the surroundings
b. (as modifier): a hothouse plant.
a. an environment that encourages rapid development
b. (as modifier): a hot-house atmosphere.
3. an environment where there is great pressure: showjumping is a tough, hothouse world.
4. (modifier) informal often censorious sensitive or delicate: a hothouse temperament.



n., pl. -hous•es (-ˌhaʊ zɪz)

adj., v. -housed, hous•ing. n.
1. an artificially heated greenhouse for the cultivation of tender plants.
2. a place favoring rapid growth; hotbed.
3. Obs. a brothel.
4. of or pertaining to a plant grown in, or capable of being grown only in, a hothouse.
5. overprotected, artificial, or unnaturally delicate.
6. to cultivate in a hothouse.
7. to educate (children) at an unusually early age.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hothouse - a greenhouse in which plants are arranged in a pleasing mannerhothouse - a greenhouse in which plants are arranged in a pleasing manner
glasshouse, greenhouse, nursery - a building with glass walls and roof; for the cultivation and exhibition of plants under controlled conditions


noun greenhouse, conservatory, glasshouse, orangery Wilted plants thrive when well tended in a hothouse.


[ˈhɒthaʊs] N (hothouses (pl)) [ˈhɒthaʊzɪz]invernadero m


(= greenhouse) → serre f chaude
(fig) [ideas, activity] → foyer m
[flowers] → de serre chaude
(fig) [atmosphere] → fébrilehot key nraccourci m clavier


[ˈhɒtˌhaʊs] nserra


(hot) adjective
1. having or causing a great deal of heat. a hot oven; That water is hot.
2. very warm. a hot day; Running makes me feel hot.
3. (of food) having a sharp, burning taste. a hot curry.
4. easily made angry. a hot temper.
5. recent; fresh. hot news.
ˈhotly adverb
1. eagerly; quickly. The thieves were hotly pursued by the police.
2. angrily; passionately. The accusations were hotly denied.
hot air
boastful words, promises that will not be kept etc. Most of what he said was just hot air.
ˌhot-ˈblooded adjective
passionate; having strong feelings. hot-blooded young men.
hot dog
a hot sausage sandwich.
ˈhotfoot adverb
in a great hurry. He arrived hotfoot from the meeting.
ˈhothead noun
a hotheaded person.
ˌhotˈheaded adjective
easily made angry; inclined to act suddenly and without sufficient thought.
ˈhothouse noun
a glass-house kept warm for growing plants in. He grows orchids in his hothouse.
ˈhot-plate noun
1. the part of a cooker on which food is heated for cooking.
2. a portable heated plate of metal etc for keeping plates of food etc hot.
be in hot water, get into hot water
to be in or get into trouble.
hot uppast tense, past participle ˈhotted verb
to increase; to become more exciting etc.
in hot pursuit
chasing as fast as one can. The thief ran off, with the shopkeeper in hot pursuit.
like hot cakes
very quickly. These books are selling like hot cakes.
References in classic literature ?
You were a good deal cut up yourself, Tom, two weeks ago, when those young ladies left your hothouse door open, with a frosty east wind blowing right in; you said it killed a good many of your plants.
John no one thwarted, much less punished; though he twisted the necks of the pigeons, killed the little pea-chicks, set the dogs at the sheep, stripped the hothouse vines of their fruit, and broke the buds off the choicest plants in the conservatory: he called his mother "old girl," too; sometimes reviled her for her dark skin, similar to his own; bluntly disregarded her wishes; not unfrequently tore and spoiled her silk attire; and he was still "her own darling.
Craig, with the wonderful hothouse plant in his button-hole, was staring at her, she knew.
That is my little wild strawberry, Hunsden, whose sweetness made me careless of your hothouse grapes.
On the journey he had a very good appetite for such refreshment as came in our way (including a basket of choice hothouse peaches), but never thought of paying for anything.
The trappings of warriors of Okar aided in the deception; and for wear beyond the hothouse cities we each had suits of the black- and yellow-striped orluk.
The man was a hunting maniac, and where my dear father used to grow prize peaches under glass, this vandal was soon stabling his hothouse thoroughbreds, which took prizes in their turn at all.
It had snowed the day before and the path to the hothouse, along which the prince was in the habit of walking, had been swept: the marks of the broom were still visible in the snow and a shovel had been left sticking in one of the soft snowbanks that bordered both sides of the path.
Fierce, formidable fighters from the hothouse cities of the frozen north.
The firelight shadows were dancing over the walls; the cats were purring; and a huge bowl of hothouse chrysanthemums, sent to Phil by one of the victims, shone through the golden gloom like creamy moons.
Tripe is more expensive, properly understood, than the hothouse pine-apple.
Shaw one evening, and was helping him off with his coat, the bell rang, and a fine bouquet of hothouse flowers was left in Polly's hands, for she never could learn city ways, and opened the door herself.