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出典:Wiktionary
出典:『Wiktionary』 (2026/05/17 17:19 UTC 版)
From Middle Dutch drillen (“bore, move in a circle”).
drill (third-person singular simple present drills, present participle drilling, simple past and past participle drilled)
drill (third-person singular simple present drills, present participle drilling, simple past and past participle drilled)
Uncertain. Compare the same sense of trill, and German trillen, drillen. Attestation predates Etymology 1.
drill (third-person singular simple present drills, present participle drilling, simple past and past participle drilled)
drill (third-person singular simple present drills, present participle drilling, simple past and past participle drilled)
Source unknown. Probably of African origin; compare mandrill. (This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)
drill (countable and uncountable, plural drills)
出典:Wikipedia
出典:『Wikipedia』 (2011/08/07 23:52 UTC 版)
A drill or drill motor is a tool fitted with a cutting tool attachment or driving tool attachment, usually a drill bit or driver bit, used for drilling holes in various materials or fastening various materials together with the use of fasteners. The attachment is gripped by a chuck at one end of the drill and rotated while pressed against the target material. The tip, and sometimes edges, of the cutting tool does the work of cutting into the target material. This may be slicing off thin shavings (twist drills or auger bits), grinding off small particles (oil drilling), crushing and removing pieces of the workpiece (SDS masonry drill), countersinking, counterboring, or other operations.
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burls
rudds
a plaything with which one trifles for pleasure