(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.
Sink
Definition:
(v. i.) To fall by, or as by, the force of gravity; to descend lower and lower; to decline gradually; to subside; as, a stone sinks in water; waves rise and sink; the sun sinks in the west.
(v. i.) To enter deeply; to fall or retire beneath or below the surface; to penetrate.
(v. i.) Hence, to enter so as to make an abiding impression; to enter completely.
(v. i.) To be overwhelmed or depressed; to fall slowly, as so the ground, from weakness or from an overburden; to fail in strength; to decline; to decay; to decrease.
(v. i.) To decrease in volume, as a river; to subside; to become diminished in volume or in apparent height.
(v. t.) To cause to sink; to put under water; to immerse or submerge in a fluid; as, to sink a ship.
(v. t.) Figuratively: To cause to decline; to depress; to degrade; hence, to ruin irretrievably; to destroy, as by drowping; as, to sink one's reputation.
(v. t.) To make (a depression) by digging, delving, or cutting, etc.; as, to sink a pit or a well; to sink a die.
(v. t.) To bring low; to reduce in quantity; to waste.
(v. t.) To conseal and appropriate.
(v. t.) To keep out of sight; to suppress; to ignore.
(v. t.) To reduce or extinguish by payment; as, to sink the national debt.
(n.) A drain to carry off filthy water; a jakes.
(n.) A shallow box or vessel of wood, stone, iron, or other material, connected with a drain, and used for receiving filthy water, etc., as in a kitchen.
(n.) A hole or low place in land or rock, where waters sink and are lost; -- called also sink hole.
Example Sentences:
(1) Arterial-type flows produced a pair of vortex sinks downstream of the branching port.
(2) The compromised ice sheet tilts and he sinks into the Arctic Sea on the back of his faltering white Icelandic pony.
(3) These recent Times scoops about Obama's policies do not sink to the level of the Judy Miller debacle.
(4) Comparatively the virus strength sinks more slowly at 4 degrees C in the more mineralized river water (figure 2).
(5) Milk poured from higher (5-10cm above the cup) will sink beneath the surface.
(6) The chylomicrons in particular, become separated from the VLDL, the sinking pre-beta-lipoprotein or Lp (a) was identifiable and the type III hyperlipemia was easily diagnosed.
(7) It’s another squalid reminder of Conservative priorities, and how low they are prepared to sink in pursuit of them.
(8) Chinese drugs constitute a unique medicinal system that features the following three subsystems: subsystem of medicinal substances consisting of traditional theories such as "four properties and five tastes of drugs" and "the principal, adjuvant, auxiliary and conduct ingredients in a prescription' , etc; subsystem of pharmacological actions comprising the theory of "ascending, descending, floating and sinking", etc; Subsystem of human body's functions incorporating the theory of "drugs to act on the channels".
(9) In women, but not in men, there was a rise in the risk of falling from 45 years, peaking in the 55-59 year age group, and sinking to a nadir at ages 70-74.
(10) 81% of all sinks were contaminated with P. aeruginosa strains.
(11) During the early part of the experiments, when the sink condition was maintained, FAH was the most effective for hairless mouse skin, whereas Azone showed the highest effect in the rat skin.
(12) Opening of water taps generated aerosols containing P. aeruginosa sink organisms which contaminated hands during hand washing.
(13) Rats were classified into sinking and non-sinking groups, according to the appearance of sinking behavior over a 2 hr test.
(14) The laminar pattern of current sources and sinks coincident with this component was more complicated after bicuculline, reflecting the summation of current flows associated with disinhibited lamina 4 activity.
(15) But the reality of it began to sink in, and when I met with Kathy Kennedy [the Lucasfilm president and Star Wars executive producer], my gut said this is not something to reject.
(16) For here we see the depravity to which man can sink, the barbarity that unfolds when we begin to see our fellow human beings as somehow less than us, less worthy of dignity and life; we see how evil can, for a moment in time, triumph when good people do nothing."
(17) Waste eluates are collected and drained to the sink by a Teflon tray positioned between the columns and counting tubes, also held by the turntable.
(18) But it has been overwhelmed by the story of the sinking of the Sewol.
(19) Since biogenic particulate products, especially fecal pellets, are known to sink rapidly and intact to the ocean bottom, the transport of PCB's by such sinking particles could be an important mechanism which contributes to the penetration of PCB's into the deep sea.
(20) The receptor component had a current source in the outer segments (90% depth) and a sink in the ONL (70% depth).