Tamping

Webster's Dictionary of the English Language

·noun The material used in tamping. ·see Tamp, ·vt, 1.

II. Tamping ·p.pr. & ·vb.n. of Tamp.

III. Tamping ·noun 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.