safety glass

safety glass

noun
a pane made by joining two plates or panes of glass with a layer of usually transparent plastic or artificial resin between them that retains the fragments if the glass is broken.

Origin:
1920–25

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Collins
World English Dictionary
safety glass
 
n
glass made by sandwiching a layer of plastic or resin between two sheets of glass so that if broken the fragments will not shatter

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Britannica
Encyclopedia

safety glass

type of glass that, when struck, bulges or breaks into tiny, relatively harmless fragments rather than shattering into large, jagged pieces. Safety glass may be made in either of two ways. It may be constructed by laminating two sheets of ordinary glass together, with a thin interlayer of plastic, or it may be produced by strengthening glass sheets by heat treatment.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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