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greenhouse
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greenhouse Interior of a greenhouse. Geneva City Conservatory and Botanical Gardens Rows of lettuce and pepper plants growing in soil inside a greenhouse, with a plastic-covered drip irrigation system visible between the plants. Poinsettias (Euphorbia pulcherrima) being cultivated in the controlled environment of a modern greenhouse.
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greenhouse
greenhouse Greenhouse in Braunschweig, Germany.

greenhouse

agriculture
Also known as: glasshouse
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Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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•History

greenhouse, building designed for the protection of tender or out-of-season plants against excessive cold or heat. In the 17th century, greenhouses were ordinary brick or timber shelters with a normal proportion of window space and some means of heating. As glass became cheaper and as more sophisticated forms of heating became available, the greenhouse evolved into a roofed and walled structure built of glass with a minimal wooden or metal skeleton. By the middle of...

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