silver-colored sheet; aluminized insulating sheet
Refers to a sheet material with a silver appearance, often used for insulation, sun protection, or emergency blankets. The term can describe both the color and the functional aluminized layer.
I keep a silver insulating sheet in my emergency bag in case of a disaster.
To lower the temperature inside the car in summer, I put a silver reflective sheet on the windshield.
Compound of 銀 (gin, 'silver') and シート (shīto, from English 'sheet'), referring to a sheet with a silver-colored or aluminized surface.