(v. t.) To pierce or bore with a drill, or a with a drill; to perforate; as, to drill a hole into a rock; to drill a piece of metal.
(v. t.) To train in the military art; to exercise diligently, as soldiers, in military evolutions and exercises; hence, to instruct thoroughly in the rudiments of any art or branch of knowledge; to discipline.
(v. i.) To practice an exercise or exercises; to train one's self.
(n.) 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.
(n.) The act or exercise of training soldiers in the military art, as in the manual of arms, in the execution of evolutions, and the like; hence, diligent and strict instruction and exercise in the rudiments and methods of any business; a kind or method of military exercises; as, infantry drill; battalion drill; artillery drill.
(n.) Any exercise, physical or mental, enforced with regularity and by constant repetition; as, a severe drill in Latin grammar.
(n.) A marine gastropod, of several species, which kills oysters and other bivalves by drilling holes through the shell. The most destructive kind is Urosalpinx cinerea.
(v. t.) To cause to flow in drills or rills or by trickling; to drain by trickling; as, waters drilled through a sandy stratum.
(v. t.) To sow, as seeds, by dribbling them along a furrow or in a row, like a trickling rill of water.
(v. t.) To entice; to allure from step; to decoy; -- with on.
(v. t.) To cause to slip or waste away by degrees.
(v. i.) To trickle.
(v. i.) To sow in drills.
(n.) A small trickling stream; a rill.
(n.) An implement for making holes for sowing seed, and sometimes so formed as to contain seeds and drop them into the hole made.
(n.) A light furrow or channel made to put seed into sowing.
(n.) A row of seed sown in a furrow.
(n.) A large African baboon (Cynocephalus leucophaeus).
(n.) Same as Drilling.
Example Sentences:
(1) "Acoustic" craters were produced by two laser pulses delivered into a saline-filled metal fiber cap, which was placed in a mechanically drilled crater.
(2) In late May, more than 50 residents of Ust-Usa protested the effects of oil drilling and plans for a new oil well near the village.
(3) Officers arrested her last month during the protest against oil drilling by the energy firm Cuadrilla at Balcombe in West Sussex – a demonstration Lucas has attended several times.
(4) An image depicting the British prime minister, David Cameron, is held by a protester during a rally at the former test drill site operated by Cuadrilla Resources in Balcombe.
(5) Based on available information regarding heat tolerance of neural tissue, all drills were found capable of producing hazardous temperature elevations.
(6) Some art experts have petitioned against Seracini drilling through the Vasari fresco, claiming any paint found behind might have been left by another artist.
(7) There were 119 quarry drilling and crusher workers (outdoor, physically active), 77 quarry truck and loader drivers (outdoor, physically inactive), 92 postal deliverymen (outdoor, physically active), 75 postal clerks (indoor, physically inactive), and 43 hospital maintenance workers (indoor, physically active).
(8) Salem County (NJ) Memorial Hospital cooperated in an areawide disaster drill and found that it took large doses of planning and cooperation to coordinate the effort.
(9) But the research drills down into the data to examine different cohorts separately, and discovers that reassuring overall averages are masking some striking variations.
(10) We now need to get on with exploratory drilling to find out the extent of the UK’s oil and gas reserves.” Geoff Davies, chief executive of Celtique, said: “We are studying the impact of the amendments [and] will make a decision in due course regarding the potential appeal of the Fernhurst planning refusal.” Cuadrilla did not respond to a request for comment.
(11) The selection of diamond-coates whetstones manufactured by Chirana for turbine drills is extended at present by two new types of toods with a different size of diamond particles.
(12) The effect of drill speed on biopsy size and quality for microscopy was studied postmortem.
(13) But its protests were far more muted than the complaints which saw off plans for drills there earlier this year.
(14) Preservation and usefulness of human gross temporal bones that have been dissected or drilled have always been a problem.
(15) We are looking to find solutions for global warming and yet we’re spending billions to drill deeper and deeper for oil.
(16) Oil is coating birds and delicate wetlands along the Louisiana coast, and the political fallout from the spill has reached Washington, where the head of the federal agency that oversees offshore drilling resigned today.
(17) This included estimation of the furthest distance that the cooling fluid, using coloured water, and the bone chips of a dry petrous temporal bone can be thrown, and the spread of the fine dust produced by the drilling using a staph.
(18) The left tibia served as a drilled but nonimplanted control.
(19) The risk factors with statistical significance in conditional logistic regression analysis were exposure time of smelting, time of underground drilling, and age of beginning mining underground.
(20) • Very robust questioning, known as the harsh approach, could be banned – or if not "the approach should not include an analogy with a military drill sergeant".
Trepanation
Definition:
Example Sentences:
(1) The automatic half of both the motor which advances the trepan as well as the second motor which rotates the trepan is triggered by the sudden change in electrical resistance between the trepan and the patient's internal body fluid, at the final stage of penetration.
(2) Labyrinthine trepanation was performed in the majority of 16 patients with minor agenesis of middle ear involving either stapedovestibular ankylosis or absence of fenestra vestibuli.
(3) The introduction of a new motorized trepan in ophthalmic surgery by Arthur v. Hippel in 1891 was a very important achievement.
(4) Already Hippocrates recommended decompression-trepanation for the treatment of hydrocephalus.
(5) Borings with rose trepans without cooling fluid cause sometimes considerable heat lesions up to a depth of 30 mu.
(6) The method of choice for the treatment was the osteoplastic trepanation with a removal of the haematoma.
(7) A second similar observation was made in a 15 year old male, trepanated because of an epidural abscess.
(8) Surgical techniques were those of Mackensen (1972), the trap-door technique, and a trepanation of the sclerocornea with regrafting.
(9) Resection trepanation of the skull was carried out in 55 patients, osteoplastic in 23.
(10) It can be demonstrated that because of the stress on the femur and its mechanical characteristics (material distribution, density distribution, breaking strength, "structure" strength and the histological structure), a lateral trepanation of the femoral corticalis is weakening the bone in its mechanically most stressed part whereas an anterior fenestration is mechanically much better.
(11) Before trepanation they received infiltration anaesthesia of the scalp at the site of the proposed operation.
(12) The surgical removing of the apical part of the implant with the use of a Trepan bur made it possible to examine and visualize histologically and microradiographically the tissue adjacent to the implant.
(13) Due to these observations, Perier had suggested to treat deafness by trepanation.
(14) Investigations of the French physician Perier on patients after a trepanation of their skulls have shown that talking can be understood in the case of hermetically closed ears by means of the trepanation scar.
(15) Since skin problems as decubitus and infections are well known risks in osteoplastic trepanations in congenital malformations in children, we searched for a reduction in size of the implants and the possibility to use biodegradable materials.
(16) This case shows that the value of angiography for the diagnosis of brain death may sometimes be limited, at least in those cases in which osteoclastic trepanation has been performed or there are other causes for a skull defect, because they can prevent the rise of intracranial pressure which brings about the cerebral circulatory arrest.
(17) After osteoclastic trepanation 45 patients were investigated with ultrasonic tomography.
(18) This is effected by the ability to change the penetration angle of the electrode or by choosing a different point of trepanation.
(19) During trepanation a macroscopically typical finding of Sturge-Weber-syndrome could be demonstrated (angioma capillare et venosum) covering almost the entire right posterior hemisphere.
(20) Since the bone meal is usually obtained during trepanation, bone biopsies of other body regions are unnecessary.