Greenhouse
WordNet
adjective
(1) Of or relating to or caused by the greenhouse effect
"Greenhouse gases"
noun
(2) A building with glass walls and roof; for the cultivation and exhibition of plants under controlled conditions
WiktionaryText
English
Noun
- A building traditionally made of glass, but now also made from plastics such as polyethylene, in which plants are grown more rapidly than outside such a building by the action of heat from the sun, this heat being trapped inside by the glass or plastic.