From Longman Dictionary of Contemporary Englishglassed-inˌglassed-ˈin adjective surrounded by a glass structure a glassed-in porch
Examples from the Corpus
glassed-in• They could see a corner of the reception hall and the glassed-in area for the secretaries.• a glassed-in back porch• The belts roll up and down through a warmed, glassed-in chamber while the doughnuts rise like slowly inflating tires.• The statue shares space with dioramas, glassed-in scenes of the Capitol in various stages of its construction. 