greenhouse

American  

[green-hous] / ˈgrinˌhaʊs /

noun

greenhouses plural

1. a building, room, or area, usually chiefly of glass, in which the temperature is maintained within a desired range, used for cultivating tender plants or growing plants out of season.

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greenhouse British  

/ ˈɡriːnˌhaʊs /

noun

1. a building with transparent walls and roof, usually of glass, for the cultivation and exhibition of plants under controlled conditions

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Etymology

Origin of greenhouse

First recorded in 1655–65; green + house

Example Sentences

Unburned gas consists primarily of methane, a potent greenhouse pollutant.

From The Wall Street Journal • May 21, 2026

The move would save Americans $2.4 billion in regulations on the greenhouse gases that firms pass on to consumers, the EPA said.

From Barron's • May 21, 2026

The work also introduces a new strategy for hydrogen exploration that may support efforts to reduce greenhouse gas emissions and expand clean energy options.

From Science Daily • May 20, 2026

"We can see a significant reduction in greenhouse gas emissions," he adds.

From BBC • May 18, 2026

Think what Bill Gates, say, would pay for some tendriled, purply lobed piece of Venusian exotica to put in a pot in his greenhouse.

From "A Walk in the Woods" by Bill Bryson

Related Words

• arboretum
• conservatory
• nursery