What's the difference between grinding and grinning?

Grinding


Definition:

  • (p. pr. & vb. n.) of Grind
  • (a. & n.) from Grind.

Example Sentences:

  • (1) The contents of hexavalent chromium, Cr(VI), in grinding dust were undetectable.
  • (2) In EastEnders , the mystery surrounding the identity of Kat's secret squeeze continues amid the grinding of narrative levers and the death rattle of overflogged script-horses.
  • (3) We suggest that other functions than grinding, such as supplying minerals, may be equally important functions of the grit.
  • (4) While exposure of root surface dentin alone (negative control) produced no alterations, grinding the surface (positive control) caused noticeable changes in dentin, odontoblasts, and pulp.
  • (5) But he denied having an axe to grind against Riordan, now a Fair Work Commissioner.
  • (6) Nancy Curtin, the chief investment officer of Close Brothers Asset Management said: "The US economy didn't just grind to a halt in the first quarter – it hit reverse as the polar vortex took its toll.
  • (7) On the other hand, grinding the glossy ridge-lap surface, painting the teeth with monomer or a solvent, preparing retention grooves on the ridge-lap portion of the teeth effectively lock the teeth to the denture base.
  • (8) Sporulating cells of Bacillus sphaericus 9602 containing fully engulfed forespores at different stages of maturity were broken by ultrasonic disruption, followed by grinding with alumina.
  • (9) Achieving efficiency on this scale will be complicated and a long, hard grind.
  • (10) Lord Mitchell, who helped to lead Movement for Change's rally of activists this summer and who tabled yesterday's amendment, has said that the change will help "those who live in the hell-hole of grinding debt.
  • (11) In Java 81.1% of the males and 99.2% of the females showed dental mutilations in the form of grinding the incisal and vestibular surfaces of the maxillary incisors and canines.
  • (12) The experimental carborundum wheels exhibited much the same performance as the marketed carborundum wheel under a less grinding pressure that 100 gf.
  • (13) The anterior teeth can often be coupled to the posterior controls by modifying contours with selective grinding, full or partial coverage restorations, or composite.
  • (14) The combination of various possibilities for sample preparation and investigation--the tinting penetration method, the ion beam slope cutting, the light and scanning electron microscopy--allow statements at the grind after different drying of the preparation mainly to the bond but also surface and filler shape of glass-ionomer cements.
  • (15) Printers have come a long way since 1984 when Hewlett Packard introduced the ThinkJet , the firm's first personal inkjet printer grinding at a snail's pace of two pages a minute and priced at a whopping $495.
  • (16) Pyralgin (metamizole sodium) usefulness was tested in premedication of 90 patients subjected to processing of hard tooth tissues by grinding or drilling.
  • (17) Mercury vapor levels associated with grinding amalgam models and mulling amalgams in the palm of the hand following trituration have been measured in a dental laboratory in inhalation position.
  • (18) Gap changes which resulted during porcelain firing cycles were relatively small, but larger marginal discrepancies developed in crowns prepared with a compatible porcelain during grinding and abrasive blasting procedures.
  • (19) Cases were no more likely than well controls to report ever-grinding, but were actually significantly less likely than well controls to report current grinding.
  • (20) After functional analysis and diagnostic grinding-in in the Dentatus articulator, the teeth of 10 patients were ground in directly in the mouth using a list of corrections.

Grinning


Definition:

  • (p. pr. & vb. n.) of Grin

Example Sentences:

  • (1) "It is incredibly hard work," she says with a sly grin.
  • (2) There was nothing accidental about Saffiyah Khan’s easy nonchalance, grinning through the spitting rage of Ian Crossland at the EDL rally in Birmingham city centre at the weekend; Ieshia Evans knew there was more power in calm when she approached the police in Baton Rouge last summer.
  • (3) Then Obama himself swooped in with a big bear hug around Giffords's tiny frame, grinning widely before climbing to the rostrum for the speech.
  • (4) Thank you for your encouragement and good wishes,” Ma Jing, the director general of CCTV America, told the president, flanked by a number of grinning American staff.
  • (5) Who can complain of physical fear, of the nightmare of a baby eating its way out of your abdomen, of the loss of professional autonomy, staring at a stranger's idiotic grin?
  • (6) I have a self-satisfied grin just thinking about these expressions.
  • (7) People take pictures of themselves wherever they go, from cathedrals to airports to funerals , always the same face grinning at the camera.
  • (8) The thing that had me cracking up all night long is, I go through 20 years of everybody screaming to pass the ball,” Bryant said with a grin.
  • (9) Putin could have been forgiven for allowing himself a wry grin, as another court comprehensively trashed Berezovsky's reputation.
  • (10) The new No8 allowed a slight grin to creep over his face, seemingly struggling to contain his excitement.
  • (11) She reminds me of the time David was ridiculed for being photographed grinning inanely with a banana.
  • (12) Asked about his repeated gestures, grins and smirks towards the victims, she said it brought back memories of seeing him at Srebrenica.
  • (13) The final seconds of the movie are the most memorable, in which Smokey assures Big Worm he’s going to rehab, before hanging up the phone and lighting a joint with a mischievous grin to the camera.
  • (14) After Second World War army service, his physique, graceful carriage and radiant grin took him from lift attendant to Broadway and instant movie stardom in The Killers (1946).
  • (15) "We couldn't believe our eyes," grinned Shamad, recalling the sight of Tunisia's ousted despot, Zine al-Abidine Ben Ali, fleeing a land he had ruled for 23 years.
  • (16) "I have no idea," Farage barked back with something between a grin and a scowl.
  • (17) During mimetic actions, such as wrinkling the forehead, closing the eyes, blinking, grinning and blowing out the cheeks, EMG from 16 disk electrodes were concurrently recorded from the frontalis, orbicularis oculi, and orbicularis oris muscles on both sides.
  • (18) We’ll definitely show that on the day.” There was a twinkle in his eye and a slight grin on his face but Bale, make no mistake, was deadly serious.
  • (19) For Cohn, a teddy boy at heart, neither came close to the glamour and speed fix of the rapidly receding “golden age” he wrote about with such dash: Elvis’s “great ducktail plume and lopsided grin”, Phil Spector’s “beautiful noise”, and James Brown, “the outlaw, the Stagger Lee of his time”.
  • (20) There are pictures of firefighters, policemen, soldiers and members of the public, some grinning and holding up placards celebrating Bin Laden's execution.

Words possibly related to "grinning"