Definitions

1. noun

A greenhouse or conservatory in which the temperature is maintained at a level that fosters the growth of plants, especially tropical plants.

“The botanical garden’s new vaporarium would be home to over 500 species of exotic plants.”

2. noun

A room or structure for growing plants in a controlled environment, typically with high humidity and temperature.

“The vaporarium allowed the researchers to study the effects of varying humidity levels on plant growth.”