greenhouse

noun green·house \ ˈgrēn-ˌhau̇s \

Updated on: 13 Apr 2018

Definition of greenhouse

1 : a structure enclosed (as by glass) and used 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

See greenhouse defined for English-language learners

See greenhouse defined for kids

Examples of greenhouse in a Sentence

needed to move the plants into the greenhouse before the first frost killed them

Recent Examples of greenhouse from the Web

Apple says its renewable energy projects have reduced the company's greenhouse gas emissions by 54 percent since 2011 and prevented nearly 2.1 million metric tons of carbon dioxide from entering the atmosphere.

— dennis pillion, AL.com, "Apple hits 100 percent renewable power, but what does that mean?," 10 Apr. 2018
San Diego’s climate action plan, which was adopted in 2015, commits the city to slashing its greenhouse gas emissions 15 percent below 2010 levels by 2020 and 50 percent below that benchmark by 2035.

— david garrick, sandiegouniontribune.com, "San Diego's climate action plan puts hitch in marijuana supply chain," 7 Apr. 2018
The reports says the city's mayor is proposing a toll plan aimed at reducing congestion and greenhouse gas emissions caused by downtown commuters.

— laura mcknight, NOLA.com, "St. Charles Parish president hospitalized after motorcycle crash: Fox 8 report," 5 Apr. 2018
And the Clean Power Plan, Obama’s signature regulation to curb greenhouse gas emissions, is backed by science about the health impacts of particulate matter.

— emily atkin, The New Republic, "The War on Science Is Over. The Republicans Won.," 5 Apr. 2018
Over the next decade, the city hopes to reduce commute times by 10 percent and transportation’s greenhouse gas emissions by half of 2005 levels.

— story hinckley, The Christian Science Monitor, "Are your Uber and Lyft accounts worsening traffic?," 4 Apr. 2018
The residential building sector contributes to roughly a quarter of the state’s greenhouse gas emissions.

— jon chesto, BostonGlobe.com, "Governor Baker backs bill requiring energy efficiency grades for homes," 3 Apr. 2018
Those talks, along with negotiations involving California, will determine the course of the most significant effort to tackle greenhouse gas emissions from mobile sources.

— Scientific American, "EPA to Roll Back Car Efficiency Rules, Despite Science That Supports Them," 3 Apr. 2018
Set in 2012, the national standards would have required automakers to reach an average fuel economy of 54.5 miles per gallon by 2025, thereby preventing 6 billion metric tons of greenhouse gas emissions and saving 12 billion barrels of oil.

— justin worland, Time, "Carmakers Wanted President Trump to Ease Emission Standards. Now They're Afraid He'll Go Too Far," 2 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'greenhouse.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of greenhouse

1664

in the meaning defined at sense 1

See Words from the same year

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greenhouse Synonyms

Synonyms

conservatory, hothouse;

Related Words

cold frame, hot bed;

nursery;

botanical garden (also botanic garden);

greenhouse

adjective

Definition of greenhouse

: of, relating to, contributing to, or caused by the greenhouse effect

greenhouse warming

greenhouse gases

See greenhouse defined for English-language learners

Recent Examples of greenhouse from the Web

In the case of Harvey, as with other specific events, scientists now have the capability to perform attribution studies which make more quantitative statements about how greenhouse gas emissions influenced that event.

— suzana camargo, Fortune, "Global Warming Didn’t Cause Hurricane Harvey. Here’s What Did.," 29 Aug. 2017
The worse mileage a vehicle gets the more greenhouse gas emissions flow into our atmosphere.

— gary richards, The Mercury News, "Mr. Roadshow: Why is she bragging about her polluting old car?," 6 Mar. 2017
Several independent analyses, including authoritative studies from the Department of Energy’s Argonne National Laboratory in Illinois, suggest that ethanol releases significantly less greenhouse gas emissions than gasoline.

— david gelles, New York Times, "The Standoff Between Big Oil and Big Corn," 17 Sep. 2016
The school was able to cheaply heat its greenhouse year-round with cord wood cut by students.

— Bloomberg.com, "New Alaska Handbook Provides How-to on Heated Greenhouses," 12 May 2017

First Known Use of greenhouse

1974

in the meaning defined above

See Words from the same year

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GREENHOUSE Defined for English Language Learners

greenhouse

noun

Definition of greenhouse for English Language Learners

: a building or part of a building that has glass walls and a glass roof and that is used for growing plants

greenhouse

adjective

Definition of greenhouse for English Language Learners

: relating to or caused by the warming of the Earth's atmosphere that is caused by air pollution : relating to or caused by the greenhouse effect

GREENHOUSE Defined for Kids

greenhouse

noun green·house \ ˈgrēn-ˌhau̇s \

Definition of greenhouse for Students

: a building with clear walls and roof (as of glass) for growing plants

Learn More about greenhouse

See words that rhyme with greenhouse Thesaurus: All synonyms and antonyms for greenhouse Spanish Central: Translation of greenhouse Nglish: Translation of greenhouse for Spanish speakers Britannica English: Translation of greenhouse for Arabic speakers Britannica.com: Encyclopedia article about greenhouse

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greenhouse

Definition of greenhouse

Examples of greenhouse in a Sentence

Recent Examples of greenhouse from the Web

First Known Use of greenhouse

greenhouse Synonyms

Synonyms

Related Words

greenhouse

Definition of greenhouse

Recent Examples of greenhouse from the Web

First Known Use of greenhouse

Phrases Related to GREENHOUSE

Related Phrases

GREENHOUSE Defined for English Language Learners

greenhouse

Definition of greenhouse for English Language Learners

greenhouse

Definition of greenhouse for English Language Learners

GREENHOUSE Defined for Kids

greenhouse

Definition of greenhouse for Students

Learn More about greenhouse

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