an apparatus for splitting stone, consisting of two tapered bars (feathers) , inserted into a hole drilled into the stone, between which a narrow wedge (plug) is hammered to spread them.
[ 1835-45 ]
an apparatus for splitting stone, consisting of two tapered bars (feathers) , inserted into a hole drilled into the stone, between which a narrow wedge (plug) is hammered to spread them.
[ 1835-45 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012