aiguille (n.) An instrument for boring holes, used in blasting.
Chambers DictionaryChamber's 20th Century Dictionary๐
aiguille ฤ-gwฤlโฒ, n. a sharp,
needle-like peak of rock, applied esp. to many of the peaks near Mont
Blanc: a slender boring-drill for blasting. [Fr. See Aglet.]
Military DictionaryMilitary Dictionary and Gazetteer๐ฅ
aiguille (Fr.). An instrument used by engineers to pierce a rock for
the lodgment of powder, as in a mine, or to mine a rock, so as to
excavate and make roads.
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