trass

Английский Язык - Английский Язык

Определение trass в Английский Язык Английский Язык словарь

{n} a gray or yellowish porous stone

Hence, a coarse sort of plaster or mortar, durable in water, and used to line cisterns and other reservoirs of water

A light-colored tuff used in hydraulic cement

A white to gray volcanic tufa, formed of decomposed trachytic cinders; sometimes used as a cement