Толковый словарь английского языка Oxford English Reference - greenhouse

n. a light structure with the sides and roof mainly of glass, for rearing delicate plants or hastening the growth of plants. Phrases and idioms greenhouse effect the trapping of the sun's warmth in the lower atmosphere of the earth caused by an increase in carbon dioxide, which is more transparent to solar radiation than to the reflected radiation from the earth. greenhouse gas any of various gases, esp. carbon dioxide, that contribute to the greenhouse effect.