In sinking oil-wells in a petroleum district, to explode a charge of nitroglycerin at the bottom of (the drilled well) in order to shatter the rock and increase the flow of oil. Charges of from 20 to 80 quarts of the explosive are frequently used, and are contained in tin-plate cases, which are carefully lowered into position and exploded by the dropping of a heavy iron cylinder from above.
To attack with torpedoes; explode a torpedo under or in.
To use or explode torpedoes.
noun.
A fish of the genus Torpedo or family Torpedinidæ; an electric ray; a cramp-fish or numb-fish.
noun.
The typical genus of the family Torpedinidæ.
noun.
An explosive device belonging to either of two distinct classes of submarine destructive agents used in war—namely, torpedoes proper, which are propelled against an enemy's ship, and more or less stationary submarine mines, placed where a hostile vessel would be likely to come within range of their destructive effect. Of the first class, called also offensive torpedoes, there are three principal types:
noun.
Hence, some other explosive agent.
noun.
In medicine, narcosis; stupor.