1) Opaque wall piece
Found on
https://www.crosswordclues.com/clue/glass-block
Glass block is a decorative, hollow, building block made of glass and generally used to form a semi-translucent window or wall. Glass block windows and walls are made up of many small cubes of glass attached to one another. Merkley Supply carries glass blocks and related products for interior projects such as showers or non-load bearing walls.
Found on
http://www.encyclo.co.uk/local/22190
insulated, modular, manufactured glass product laid in masonry.
Found on
https://www.encyclo.co.uk/local/22193
a translucent, hollow or solid block of glass for glazing openings or constructing partitions, usually square on the face, with the outer surfaces treated in any of various ways. Also called
Found on
https://www.infoplease.com/dictionary/glass-block
No exact match found.
