1. To make a hole in bone or other hard substance. 2. An instrument for making or enlarging a hole in bone or in a tooth. [Middle Dutch drillen, to bore]
- bur d. bur.
- dental d. a rotary power-driven instrument into which cutting points may be inserted. SEE ALSO: handpiece.

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drill 'dril vt to make a hole in with a drill <the dentist \drilled the tooth for a filling> vi to make a hole with a drill <painless dental \drilling>
drill n an instrument with an edged or pointed end for making holes in hard substances (as bones or teeth) by revolving

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(in dentistry) a rotary instrument used to remove tooth substance, particularly in the treatment of caries. It consists of a handpiece that takes variously shaped bur. Most drilling is done with an air-driven turbine handpiece, but some is performed with a much slower mechanically driven handpiece. Drills usually have a waterspray coolant and may have a fibre-optic light.

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(dril) [Ger. drillen] 1. a rotating cutting instrument for making holes in hard substances, such as bones or teeth. 2. bur (def. 1). 3. to bore or scoop out with such an instrument.

Medical dictionary. 2011.


См. также в других словарях:

  • Drill — Drill, n. 1. An instrument with an edged or pointed end used for making holes in hard substances; strictly, a tool that cuts with its end, by revolving, as in drilling metals, or by a succession of blows, as in drilling stone; also, a drill press …   The Collaborative International Dictionary of English

  • Drill — Drill, n. 1. A small trickling stream; a rill. [Obs.] [1913 Webster] Springs through the pleasant meadows pour their drills. Sandys. [1913 Webster] 2. (Agr.) (a) An implement for making holes for sowing seed, and sometimes so formed as to contain …   The Collaborative International Dictionary of English

  • Drill — Drill, v. t. [imp. & p. p. {Drilled}; p. pr. & vb. n. {Drilling}.] [D. drillen to bore, drill (soldiers); probably akin to AS. pyrlian, pyrelian, to pierce. See {Thrill}.] 1. To pierce or bore with a drill, or a with a drill; to perforate; as, to …   The Collaborative International Dictionary of English

  • Drill — EP …   Википедия

  • drill — drill·able; drill; drill·er; drill·man; man·drill; sub·drill; …   English syllables

  • drill — Ⅰ. drill [1] ► NOUN 1) a tool or machine used for boring holes. 2) training in military exercises. 3) instruction by means of repeated exercises. 4) (the drill) informal the correct or recognized procedure. ► VERB …   English terms dictionary

  • Drill EP — Saltar a navegación, búsqueda Drill EP[1] EP de Radiohead Publicación 5 de mayo de 1992 …   Wikipedia Español

  • Drill (EP) — Drill EP Radiohead Выпущен 1992 Формат Жанр Альтернативный рок …   Википедия

  • Drill (EP) — Drill EP by Radiohead Released 5 May 1992 Recorded February 1992 …   Wikipedia

  • drill — [n1] practice, exercise assignment, call, conditioning, constitutional, daily dozen*, discipline, dress, drilling, dry run*, gym, homework, instruction, learning by doing, maneuvers, marching, preparation, repetition, run through*, shakedown*,… …   New thesaurus

  • Drill — Drill, n. [Usually in pl.] (Manuf.) Same as {Drilling}. [1913 Webster] {Imperial drill}, a linen fabric having two threads in the warp and three in the filling. [1913 Webster] …   The Collaborative International Dictionary of English

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