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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.


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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of greenhouse

First recorded in 1655–65; green + house

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Hydrogen is an alternative to gasoline, diesel fuel and natural gas that’s part of California’s climate strategy because it doesn’t produce greenhouse gas emissions when used.

From Los Angeles Times Aug. 17, 2026

Oceans are a vital regulator of the climate, absorbing most of the excess heat generated by greenhouse gas emissions and producing half of Earth's oxygen.

From BBC Aug. 10, 2026

While less polluting than coal, gas plants are still significant sources of planet-warming emissions, and their operations, particularly upstream, also leak methane, the main component of natural gas and itself a powerful greenhouse gas.

From Barron's Aug. 7, 2026

"However, how much of this is released back into the atmosphere as a greenhouse gas and how much is stored in the seabed has, until now, been largely unknown."

From Science Daily Aug. 3, 2026

But somehow, after that day in the greenhouse with Mom, I pretty much stopped writing.

From "The Science of Breakable Things" by Tae Keller

Tents - particularly polyester tents - act like mini greenhouses trapping heat inside them, from your body and the sun.

From BBC May 22, 2026

The Park Service gathered seeds from the landscape, grew them in greenhouses and planted them in the preserve in 2020 and 2021 when they were 2 to 3 years old, Polyakov said.

From Los Angeles Times May 19, 2026

My late father-in-law loved orchids, and in his decadeslong passion he built and maintained two large greenhouses.

From The Wall Street Journal May 13, 2026

Farmers are also facing higher costs of diesel for their tractors and other equipment, as well as for gas to heat greenhouses and animal enclosures.

From Barron's Mar. 25, 2026

The greenhouses were a home to her, in a way.

From "The City of Ember" by Jeanne DuPrau

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