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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Other Word Forms

Noun Inflected Forms

• greenhouses
  plural

Etymology

Origin of greenhouse

First recorded in 1655–65; green + house

Example Sentences

The decision raised concerns about potential effects on public health and efforts to reduce greenhouse gas emissions.

From Science Daily • Jul. 2, 2026

This has helped to boost their greenhouse gas emissions, with a new study by Allianz Trade estimating the centres emitted 286 million tonnes of carbon dioxide in 2025.

From Barron's • Jun. 30, 2026

“As organic waste decomposes in landfills, it accounts for 41% of the state’s methane emissions, a greenhouse gas with 84 times the power to heat the climate as carbon dioxide,” according to CalRecycle.

From Los Angeles Times • Jun. 26, 2026

The bloc’s carbon border adjustment mechanism adds a charge for certain imports based on the greenhouse gases that were emitted in their production.

From The Wall Street Journal • Jun. 25, 2026

It feels just like the inside of the greenhouse at the botanic garden.

From "Dragons in a Bag" by Zetta Elliott

Related Words

• arboretum
• conservatory
• nursery