safety glass

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safe·ty glass • n. 1. glass that has been toughened or laminated so that it is less likely to splinter when broken. 2. (safety glasses) toughened glasses or goggles for protecting the eyes when using power tools or industrial or laboratory equipment.

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safety glass Form of glass that is less hazardous than ordinary glass when broken. One form of safety glass consists of two sheets of plate glass bonded to a thinner, central sheet of transparent plastic. If an impact breaks the glass, the plastic holds the fragments in place. Bullet-proof glass consists of several layers of glass and plastic. Wired glass has an embedded wire mesh to hold the fragments in place. Toughened glass is treated to make it stronger than ordinary glass. When shattered, it forms small blunt fragments.

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