tamping, n.
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The act of one who tamps; specifically, the act of filling up a hole in a rock, or the branch of a mine, for the purpose of blasting the rock or exploding the mine. [1913 Webster]
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The material used in tamping. See
Tamp,
v. t., 1. [
1913 Webster]
Tamping iron, an iron rod for beating down the earthy substance in tamping for blasting.