any of several bronze alloys with a high tin content, often containing other materials, as silver, brass, lead, zinc, or arsenic, used for making mirrors and reflectors. Also called speculum, speculum alloy .
[ 1790-1800 ]
any of several bronze alloys with a high tin content, often containing other materials, as silver, brass, lead, zinc, or arsenic, used for making mirrors and reflectors. Also called speculum, speculum alloy .
[ 1790-1800 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012