Laminated tempered glass
Glass that is cooled very quickly during the manufacturing process (tempered) and then paired with another piece of glass and a thin plastic film (usually polyvinyl butryl) in between makes laminated tempered glass. In short, a piece of tempered glass has been laminated, merging the two most common ways of keeping people safe from glass breakage. The resulting glass, if broken, will shatter into very small pieces that are held together by the plastic interlayer. The lamination prevents those tiny shards of glass from flying if, for example, the glass were to be hit by an object that, under normal circumstances, would propel them with some force.