Look up greenhouse in Wiktionary, the free dictionary.
A greenhouse is an indoor covered place where plants are grown and cultivated. It may also refer to:
- Greenhouse effect, the atmospheric phenomenon causing planetary warming
- Greenhouse and icehouse Earth, periods when the greenhouse effect is dominant or absent
- Greenhouse effect (United States Supreme Court), postulated effect whereby conservative Supreme Court Justices drift liberal for favorable press
- Greenhouse debt, the measure to which an entity exceeds its permitted greenhouse footprint