A polyhouse, often known as a greenhouse, is a building or an enclosure composed of transparent material, such as glass or polyethylene, in which plants thrive and flourish under carefully regulated climatic conditions. Depending on the situation, structures can range in size from tiny shacks to enormous buildings. A greenhouse is primarily a glass structure whose interiors warm up when exposed to sunlight because the structure prevents greenhouse gas from escaping. As a result, even in cold weather, the inside is warm enough for the plants to survive.
Synonyms: conservatory, glasshouse, nursery
