rotary drill

noun

Definition of rotary drill

: a rock drill that bores by a rotary action

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First Known Use of rotary drill

1860, in the meaning defined above

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The first known use of rotary drill was in 1860

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Cite this Entry

“Rotary drill.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rotary%20drill. Accessed 26 Nov. 2020.

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