From Longman Dictionary of Contemporary Englishsmoked glassˌsmoked ˈglass noun [uncountable] TIGglass that is a dark grey colour
Examples from the Corpus
smoked glass• In the living-room, a smoked glass hi-fi dominated the mahogany wall unit, huge speakers beside it.• It was all tubular steel and smoked glass.• I see the flash-gun flaring out from behind smoked glass windows.• Beyond the smoked glass traffic droned up and down the High Street. 