plate glass

noun

1. a soda-lime-silica glass formed by rolling the hot glass into a plate that is subsequently ground and polished, used in large windows, mirrors, etc.

plate glass

noun

1. glass formed into a thin sheet by rolling, used for windows

Other Word Forms

• plate-glass adjective
• plateglass adjective

Word History and Origins

Origin of plate glass¹

First recorded in 1720–30