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tamp - 4 dictionary results

tamp

[tamp]
–verb (used with object)
1. to force in or down by repeated, rather light, strokes: He tamped the tobacco in his pipe.
2. (in blasting) to fill (a drilled hole) with earth or the like after the charge has been inserted.

Origin:
1810–20; perh. alter of tampion
tamp   (tāmp)   
tr.v.   tamped, tamp·ing, tamps
  1. To pack down tightly by a succession of blows or taps.
  2. To pack clay, sand, or dirt into (a drill hole) above an explosive.

[Perhaps back-formation from tampin, variant of tampion.]

Tamp

Tamp\, v. t. [imp. & p. p. Tamped; p. pr. & vb. n. Tamping.] [Cf. F. tamponner to plug or stop. See Tampion.]

1. In blasting, to plug up with clay, earth, dry sand, sod, or other material, as a hole bored in a rock, in order to prevent the force of the explosion from being misdirected.

2. To drive in or down by frequent gentle strokes; as, to tamp earth so as to make a smooth place.

tamp 
1819, "to fill (a hole containing an explosive) with dirt or clay before blasting," a workmen's word, perhaps a back-formation from tampion, that word being mistaken as a prp. (*tamping).
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