(v. t.) To chamfer or form a depression around the top of (a hole in wood, metal, etc.) for the reception of the head of a screw or bolt below the surface, either wholly or in part; as, to countersink a hole for a screw.
(v. t.) To cause to sink even with or below the surface; as, to countersink a screw or bolt into woodwork.
(n.) An enlargement of the upper part of a hole, forming a cavity or depression for receiving the head of a screw or bolt.
(n.) A drill or cutting tool for countersinking holes.
Example Sentences:
(1) Countersinking implants in extraction sites was critical; labial bone implant defects should be grafted with particulate HA.
(2) Screws will give a firm hold though you’ll need to pre-drill a hole with the 2mm drill bit and countersink the hole for a flush finish.
(3) With countersinking 55% of the 2.7 mm and 27% of the 2.0 mm screws had no threads engaged in the buccal cortical plate.
(4) Conical countersink showed plastic deformations of an average of 1300 N whereas with spherical countersink they did not occur at the same load.
(5) In case of bone cysts and thin corticalis they should provide further support against countersinking.
(6) The percussive patterning of the words serves to reinforce their meaning and to countersink them within the memory.
(7) After reaching the load of 2000 N and keeping the deformation constant we saw a significantly stronger reduction of force with the conical countersink then with the spherical type.
(8) You will need : Talc or chalk Drill 2mm and countersink wood bits 4mm x 50mm countersunk slothead screws Screwdriver Floorboard brads Hammer Punch 1) First lift any coverings there may be on top (carpets, vinyl etc).
(9) In vitro examinations on deformation and relaxation were carried out on cortical countersink of different geometry under a compression load of up to 2000 N through a screw head.
(10) As far as fracture fixation is concerned a smaller postoperative reduction of screw force can be expected if applying a cortical screw with a spherical head in a spherical countersink.
Untrue
Definition:
(a.) Not true; false; contrary to the fact; as, the story is untrue.
(a.) Not faithful; inconstant; false; disloyal.
(adv.) Untruly.
Example Sentences:
(1) "At the same time, however, we cannot allow one man's untrue version of what happened to stand unchallenged," he said.
(2) The American paper claimed Mr Jameel's company was one of a number of organisations being monitored at the request of law enforcement agencies, to prevent funds being channelled to terrorist organisations, a claim that turned out to be untrue.
(3) I categorically never said that ‘Britain has so many paedophiles because it has so many Asian men’.” She added that it was “totally untrue” that she had threatened to “take this inquiry down with me”, and absolutely rejected being rude and abusive to junior staff.
(4) "The suggestion that I deliberately misled the committee and refused to apologise are both untrue and unfair," she wrote in a letter to Keith Vaz, the committee's chairman.
(5) He said the allegations made in Iran's media are based on fabricated contents or fake accounts and are untrue.
(6) He stressed that the sister-in-law and her husband were not only accused of circulating libellously untrue stories but also of harassment of the wealthy financier.
(7) The palace initially stated that “any suggestion of impropriety with underage minors” by the duke was “categorically untrue”.
(8) Meanwhile, Ghislaine Maxwell, an associate of Epstein, has branded claims made against her as “untrue” and “obvious lies” after she was reportedly named in the US court papers by the woman.
(9) And nobody ever talks about the fact that it was in quotes, but that’s a very important thing.” But if the president says something that cannot be proved or is demonstrably untrue, doesn’t that devalue his own currency, Carlson asked a second time.
(10) Let’s stop this conversation right now.” The Qatari government says the figure used by Montague that 1,200 migrant workers have died in Qatar since it was awarded the World Cup in 2010 is categorically untrue.
(11) Flynn said he had not discussed lifting US sanctions on Russia with Sergei Kislyak, Moscow’s US ambassador, but later admitted this was untrue.
(12) Marshall refuted claims CSIRO was moving away from public good scientific research , labelling it disturbing and untrue.
(13) Some of it may prove to be true but the passage of time will show much is untrue.” In response to claims of infighting and comparison’s with Wolf Hall, a spokesman for the prince added: “Clarence House employs over 100 hardworking professionals, many of whom have been there for decades and whose work and dedication is appreciated by their royal highnesses.” The row over the book comes amid growing scrutiny of Prince Charles’s ambitions for his kingship.
(14) Khan said the rumours were "untrue and upsetting" – although they remain in circulation on Twitter.
(15) Not everything in the paperwork for Roldugin’s account was untrue.
(16) Three years later the House of Lords decided to allow the media to plead the Reynolds defence - which meant newspapers could print untrue and defamatory information if they could prove it was in the public interest to publish it and that it was the product of responsible journalism.
(17) Going with what seems a reasonable assumption – that Scotland can be successful either independent or in a federal Britain – we are left with a leap of faith in one direction or the other, based on whose utopian vision of our future is most likely to be untrue.
(18) The former Foreign Office official, who has known Steele for 25 years and considers him a friend, said: “The idea his work is fake or a cowboy operation is false – completely untrue.
(19) Totally, unbelievably untrue, but it does create doubt and they just drive right through that.” The appearance, her fourth on the late-night talk show circuit after stints on Jimmy Kimmel Live, the Late Show With Stephen Colbert and the Tonight Show with Jimmy Fallon, also had lighter moments.
(20) On Sunday, Leslee Dart, a publicist for Allen, 78, said: Mr Allen has read the article and found it untrue and disgraceful.