Function: noun
Date: 1683
: heavy brilliant glass that contains lead oxide, has a relatively high refractive index, and is used in lenses and prisms
Function: noun
Date: 1683
: heavy brilliant glass that contains lead oxide, has a relatively high refractive index, and is used in lenses and prisms
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012