Webster’s Revised Unabridged Dictionary · 1913
Holing
Hol′ing (hōl′ĭng), n. [See Hole a hollow.] (Mining) Undercutting in a bed of coal, in order to bring down the upper mass. Raymond.
Webster’s Revised Unabridged Dictionary · 1913
Hol′ing (hōl′ĭng), n. [See Hole a hollow.] (Mining) Undercutting in a bed of coal, in order to bring down the upper mass. Raymond.