What is another word for burning glass?
Pronunciation: [bˈɜːnɪŋ ɡlˈas] (IPA) 
Burning glass, sometimes referred to as a magnifying glass, is a convex lens that is used to focus sunlight onto a small area, creating intense heat. There are several synonyms for this term, including solar glass, sun glass, and fire glass. These pieces of glass can be used to start fires, as well as to study the properties of light and optics. Solar glass and sun glass are often used to describe these lenses when they are used to harness the power of the sun for various purposes. Fire glass, on the other hand, is typically used to describe a decorative type of glass that is designed to mimic the appearance of flames.
