glasshouse

noun

Etymology: From Middle English glasehows, glashous, glashows; equivalent to glass + house.

1. A greenhouse, especially one for commercial use.
2. A building where glass or glassware is manufactured.

   “The highway to the East Coast which ran through the borough of Ebbfield had always been a main road and even now, despite the vast garages, the pylons and the gaily painted factory glasshouses which had sprung up beside it, there still remained an occasional trace of past cultures.”

3. A military prison.