greenhouse

American  

[green-hous] / ˈgrinˌhaʊs /

noun

plural

greenhouses

1. a building, room, or area, usually chiefly of glass, in which the temperature is maintained within a desired range, used for cultivating tender plants or growing plants out of season.

---

greenhouse British  

/ ˈɡriːnˌhaʊs /

noun

1. a building with transparent walls and roof, usually of glass, for the cultivation and exhibition of plants under controlled conditions

---

Etymology

Origin of greenhouse

First recorded in 1655–65; green + house

Example Sentences

The UN General Assembly on Wednesday will weigh a draft resolution underlining states' obligations to combat climate change, a long-awaited move that has been scaled back under pressure from major greenhouse gas emitters.

From Barron's • May 18, 2026

The problem with this way of thinking is that each of us contributes an infinitesimally small drop in the bucket of global greenhouse gases.

From Slate • May 15, 2026

Which is why, in the race to develop new orchid types, the laboratory is at least as important as the greenhouse.

From BBC • May 14, 2026

That means less of the greenhouse gas bubbles into the air.

From The Wall Street Journal • May 14, 2026

Roza’s took place in the biology department’s greenhouse with a gray-faced professor visiting from central Illinois.

From "Bone Gap" by Laura Ruby

Related Words

• arboretum
• conservatory
• nursery