a type of hydraulic cement usually made by burning a mixture of limestone and clay in a kiln.
Also, portland cement .
[ 1815-25; named after the Isle of Portland, Dorsetshire, England ]
a type of hydraulic cement usually made by burning a mixture of limestone and clay in a kiln.
Also, portland cement .
[ 1815-25; named after the Isle of Portland, Dorsetshire, England ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012