green·house
ˈgrēn-ˌhau̇s 
plural greenhouses
1
: a usually permanent climate-controlled structure enclosed (as by glass or multiple layers of plastic) and used usually year-round for the cultivation or protection of tender plants
2
: a clear plastic shell (such as a canopy) covering a section of an airplane
also
: a compartment (as for a bombardier) enclosed by such a shell
: of, relating to, contributing to, or caused by the greenhouse effect
greenhouse warming
greenhouse gases
Examples of greenhouse in a Sentence
Noun
needed to move the plants into the greenhouse before the first frost killed them
Recent Examples on the Web
The New York Times, San Diego Union-Tribune, 15 June 2025
The grounds also include a pool, tennis court and greenhouse.
Erika Demma with Compass and Hugh Cornish with Coldwell Banker hold the listing.
—Pueng Vongs, Mercury News, 4 June 2025
Stephen Singer, Hartford Courant, 31 May 2022
And there are other ways for the president to crack down on emissions, including tightening regulations on non-greenhouse coal-plant pollutants and vehicle fuel economy standards, and boosting support for renewables.
—Tim McDonnell, Quartz, 22 Sep. 2020
See All Example Sentences for greenhouse
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Noun
The property’s 31-acre garden, including a glass greenhouse for fresh greens all year, is a highlight.
—The New York Times, San Diego Union-Tribune, 15 June 2025
The grounds also include a pool, tennis court and greenhouse.
Erika Demma with Compass and Hugh Cornish with Coldwell Banker hold the listing.
—Pueng Vongs, Mercury News, 4 June 2025
Adjective
Millstone accounts for 40% of Connecticut’s electricity and 90% of non-greenhouse gas emissions.
—Stephen Singer, Hartford Courant, 31 May 2022
And there are other ways for the president to crack down on emissions, including tightening regulations on non-greenhouse coal-plant pollutants and vehicle fuel economy standards, and boosting support for renewables.
—Tim McDonnell, Quartz, 22 Sep. 2020
See All Example Sentences for greenhouse
Cite this Entry
“Greenhouse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/greenhouse. Accessed 1 Jul. 2025.
Copy CitationKids Definition
greenhouse
1 of 2 noun
green·house
-ˌhau̇s
: a glassed enclosure for cultivation of plants
greenhouse
2 of 2 adjective
: relating to, causing, or caused by the greenhouse effect
greenhouse warming
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