What's the difference between rock and trepan?

Rock


Definition:

  • (n.) See Roc.
  • (n.) A distaff used in spinning; the staff or frame about which flax is arranged, and from which the thread is drawn in spinning.
  • (n.) A large concreted mass of stony material; a large fixed stone or crag. See Stone.
  • (n.) Any natural deposit forming a part of the earth's crust, whether consolidated or not, including sand, earth, clay, etc., when in natural beds.
  • (n.) That which resembles a rock in firmness; a defense; a support; a refuge.
  • (n.) Fig.: Anything which causes a disaster or wreck resembling the wreck of a vessel upon a rock.
  • (n.) The striped bass. See under Bass.
  • (v. t.) To cause to sway backward and forward, as a body resting on a support beneath; as, to rock a cradle or chair; to cause to vibrate; to cause to reel or totter.
  • (v. t.) To move as in a cradle; hence, to put to sleep by rocking; to still; to quiet.
  • (v. i.) To move or be moved backward and forward; to be violently agitated; to reel; to totter.
  • (v. i.) To roll or saway backward and forward upon a support; as, to rock in a rocking-chair.

Example Sentences:

  • (1) I approached the public inquiry after much soul-searching, weighing up the ramifications of "rocking the boat" with the potential longer-term gains of a more robust and sustainable regulator.
  • (2) He had links to networks including the Hammerskin Nation and was involved in an underground music scene often referred to as "white power music" or "hate rock".
  • (3) The Ibiza Rocks hotel is aimed at a young clientele who'd never make it into the VIP section of Pacha.
  • (4) Meanwhile, Brighton rock duo Royal Blood top this week's album chart with their self-titled album, scoring the UK's fastest selling British rock debut in three years.
  • (5) Facebook Twitter Pinterest Trump signs order reviving controversial pipeline projects “The Obama administration correctly found that the Tribe’s treaty rights needed to be respected, and that the easement should not be granted without further review and consideration of alternative crossing locations,” said Jan Hasselman, an attorney for the Standing Rock Sioux tribe.
  • (6) One species (the goldfish) has an extensive fundus circulation while the other (the rock bass) has a minimal one.
  • (7) You can tell them that Deutsche Bank remains absolutely rock solid, given our strong capital and risk position.
  • (8) Rocking the hepatocyte-splenocyte cultures changed the elution profile from linear to convex.
  • (9) The 180-acre imperial palace appears to send ripples through the surrounding urban grain like a rock thrown into a pond, forming the successive layers of ring-roads.
  • (10) Russell is a former director of Northern Rock while Crosby is the former chief executive of HBOS.
  • (11) Gunfire and explosions rocked Bangkok following clashes between pro-government "red shirts" and protesters, leading to fears of further violence as Thais head to the polls.
  • (12) "And if you're pursuing music as the equivalent of your nine-to-five, and you'd quite like to be doing that for years to come, it's in your interest not to rock the boat."
  • (13) It was sparked by Ferguson's decision to sue Magnier over the lucrative stud fees now being earned by retired racehorse Rock of Gibraltar, which the Scot used to co-own.
  • (14) The involvement of one of South Korea’s most powerful men has rocked the country’s business world, as it signalled that prosecutors were prepared to use the full force of the law against the head of a company whose revenues are equivalent to a fifth of the country’s GDP.
  • (15) Emotional reactivity of patients with endogenous depression and healthy test subjects towards classic and rock music was compared.
  • (16) The Volkswagen Group has announced €1bn (£750m) of spending cuts at its core VW division to help pay for a product overhaul following the emissions testing scandal that has rocked Europe’s biggest carmaker.
  • (17) Loss-making Northern Rock is axing another 680 jobs as it cuts costs in preparation for a return to the private sector after being nationalised in February 2008 .
  • (18) Big musical acts (such as BB King, Keith Urban and Queens of the Stone Age) appear during the summer concert lineup but there are also drop-in yoga sessions, and hiking and biking trails wind through sculpted rocks and wildflowers.
  • (19) Just about.” That one went over like a sublime Chris Rock riff.
  • (20) For a while yesterday, Hazel Blears's selfishly-timed resignation with her rude "rock the boat" brooch send shudders of revulsion through some in the party.

Trepan


Definition:

  • (n.) A crown-saw or cylindrical saw for perforating the skull, turned, when used, like a bit or gimlet. See Trephine.
  • (n.) A kind of broad chisel for sinking shafts.
  • (v. t. & i.) To perforate (the skull) with a trepan, so as to remove a portion of the bone, and thus relieve the brain from pressure or irritation; to perform an operation with the trepan.
  • (n.) A snare; a trapan.
  • (n.) a deceiver; a cheat.
  • (v. t.) To insnare; to trap; to trapan.

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.