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
Synonyms
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 Staff Of The Morning, New York Times, 9 Jan. 2025
There’s also a two-story office, a three-bedroom guesthouse, a farm manager’s house, a custom greenhouse, a five-bay garage sporting an upper-level entertainment room, and an eight-stall barn with a one-bedroom apartment.
—Wendy Bowman, Robb Report, 8 Jan. 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
America’s efforts to cut pollution stalled last year, with greenhouse emissions dropping just a fraction.
—The Staff Of The Morning, New York Times, 9 Jan. 2025
There’s also a two-story office, a three-bedroom guesthouse, a farm manager’s house, a custom greenhouse, a five-bay garage sporting an upper-level entertainment room, and an eight-stall barn with a one-bedroom apartment.
—Wendy Bowman, Robb Report, 8 Jan. 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
Dictionary Entries Near greenhouse
Cite this Entry
“Greenhouse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/greenhouse. Accessed 20 Jan. 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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