tooth-milln. a dentist's drill-stock or drilling-machine.
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burr1859
burr-drill1859
drill1859
foot drill1860
tooth-mill1879
1879 W. Thomson & P. G. TaitTreat. Nat. Philos. (new ed.) I: Pt. i. §109 The dentist's tooth-mill is an..illustration of the elastic universal flexure joint.