smoked glass; tinted glass
Wasei-eigo from English 'smoke glass'. Refers to glass that has been darkened or tinted, often for privacy, sun protection, or aesthetic reasons. Used for car windows, building windows, and decorative items.
wasei-eigo (Japanese-coined English), from smoke glass
The windows of this car are made of tinted glass.
The conference room door is smoked glass, so you can see inside a little.