air drill

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air drill (plural air drills)

  1. A drill driven by the elastic pressure of condensed air; a pneumatic drill.
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Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for air drill in
Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)