What's the difference between chalk and eraser?

Chalk


Definition:

  • (n.) A soft, earthy substance, of a white, grayish, or yellowish white color, consisting of calcium carbonate, and having the same composition as common limestone.
  • (n.) Finely prepared chalk, used as a drawing implement; also, by extension, a compound, as of clay and black lead, or the like, used in the same manner. See Crayon.
  • (v. t.) To rub or mark with chalk.
  • (v. t.) To manure with chalk, as land.
  • (v. t.) To make white, as with chalk; to make pale; to bleach.

Example Sentences:

  • (1) The young screenwriters possibly needed to have chalked up a few miles before they could deliver really workable scripts."
  • (2) The blue skipping rope – that’s the key to this race.” My eight-year-old daughter looked at me like I was mad … but when it came time for the year 3 skipping race, she did as she was told – and duly chalked up a glorious personal best in third place.
  • (3) His flicked header into the net seconds later, chalked off by an offside flag, confirmed the forward's luck was not in.
  • (4) Inside the first 10 minutes, Boyd hit the bar and Lukas Jutkiewicz saw a goal correctly chalked off for offside, while Danny Ings headed just wide at 2-1, and substitute Ashley Barnes struck the bar late on.
  • (5) France chalked up growth of 0.5%, beating economists' expectations, the best growth figures Fran ç ois Hollande has seen since he was elected president 15 months ago.
  • (6) 2) If the board and adjacent ones are firmly fixed, dust talc or chalk through the cracks to stop them rubbing together.
  • (7) The phrase chalk and cheese springs to mind, or as the French say jour et nuit – day and night.
  • (8) Remember the Theater People: the gal rigging lights for her community theater's production of The Chalk Garden in Brainerd, Minnesota.
  • (9) The house was later covered in chalk and finally became a curious white landmark.
  • (10) It is recommended that overall average and chalk carving be given equal emphasis in the selection process.
  • (11) HS2’s barrister, James Strachan QC, was listening closely, however, and addressed specific points with a lawyer’s care to make no rash promises: HS2’s noise would be less than traffic on the A413; HS2 were working with the RSPB to “mitigate” for barn owls; and, “If there’s a need for chalk grassland, that’s the sort of thing that can be put into these areas to compensate.” Wendy Gray was allowed to respond: “It’s very difficult to be reassured on an unknown quantity,” she said.
  • (12) According to the sonographic pattern and to the scintigraphic imaging the focal lesions were analysed as micro- or macrofollicular adenomas, autonomous adenomas, cysts and chalk.
  • (13) Shortly after arriving in Rome, Las Vegas and Tallinn, however, the lines of gameless resolve I had chalked across my mind were wiped clean.
  • (14) The economy is forecast to chalk up only 0.75% growth this year, and to contract by 1% in 2009 - which would be the first full year of contraction since 1991.
  • (15) Look, Newsnight is made by 13-year-olds,” he said, speaking at the Chalke Valley history festival about his new book on the first world war.
  • (16) A series of 75 spoilt soft lenses with opacities (mostly manifesting as discrete spots or as large areas of cloudiness, chalk-white in appearance) were subjected to histochemical, electron microscopical, electron probe x-ray microanalytical, x-ray diffraction, atomic absorption spectro-photometric, and biochemical analyses.
  • (17) A suspension of chalk powder was injected into the cavity of the urinary bladder of Fischer 344 rats.
  • (18) The reactivity of soils varies widely as geological and sedimentological conditions offer typical but different environments: gravels, chalk soil, clay, salt soils, sands, cave earths are examples of this wide variety, including atmospheric and biogenetic implications.
  • (19) A staircase descends steeply into a network of tunnels and cellars that lead to extraordinary old chalk pits.
  • (20) Photograph: Graham Turner for the Guardian But to date, the prospect of building on abandoned north Kent chalk quarries, has been so unattractive to housebuilders that they have delivered homes at the rate of just 25 a year when 1,000 a year are needed.

Eraser


Definition:

  • (n.) One who, or that which, erases; esp., a sharp instrument or a piece of rubber used to erase writings, drawings, etc.

Example Sentences:

  • (1) 5) and erased from the original Kauffmann-White-Schema and the Arizona Antigenic Schema to avoid a wrong diagnosis.
  • (2) Paterson added in the letter, published on the PoliticsHome website : "However, the government is rightly committed to advancing equality for lesbian, gay, bisexual and transgender people and has already taken action to do so by allowing those religious premises that wish to carry out civil partnerships to do so, erasing historic convictions for consensual gay sex and putting pressure on other countries that violate the human rights of LGBT people.
  • (3) In her study, Mandel explains how the media’s “narrative of polarisation” erases multiple and complex interactions, reducing everything to a hostility that is framed by the Israeli-Palestinian conflict.
  • (4) Eating at the meal site erased significant differences in dietary intake of nutrients consumed at home related to sex, education, and occupation.
  • (5) I sometimes think about erasing them, but that would be like pretending it didn't happen.
  • (6) Conservatives were unhappy the measure doesn’t erase enough of Obama’s law while at the other end of the party’s spectrum, moderates were upset the bill would strip millions of health coverage.
  • (7) Although the conservative-dominated coalition has made headway in purging the state sector since it assumed power in June 2012, sceptical attitudes have been hard to erase.
  • (8) "It's not like [2006 solo album] The Eraser at all," he said.
  • (9) The government is now considering whether to ask the employees, most of whom work in waste disposal and public transport, to have their tattoos erased, or even to find another job.
  • (10) That it may conceal, or even completely erase, major abnormalities of ventricular repolarization induced by certain drugs is not so well known.
  • (11) Feinstein’s speech this morning seems unlikely to erase that perception.
  • (12) The UN report, based on interviews with dozens of survivors, said on Thursday that the Islamist militants, who include foreign fighters, had been systematically capturing Yazidis in Iraq and Syria since August 2014 , seeking to “erase their identity”.
  • (13) Nonetheless, the project may have helped to erase the stereotype that all teenage fathers neglect their parental responsibilities.
  • (14) The second echo type consisted of one of the animal's echolocation clicks, previously measured, digitized and stored in an erasable programmable read-only memory (EPROM).
  • (15) Any idea that filming may be glamorous has been erased from my daughter's head.
  • (16) Child survival gains in the last three decades in the developed world could be quickly erased at low levels of maternal HIV infection, but gains would not be completely offset in the developing world until more than 40% of mothers became infected with HIV.
  • (17) The police are reluctant to pursue the case and, according to the Express Tribune, phone records for the last 18 days of Shahzad's life have been mysteriously erased.
  • (18) For her, the few memories of that night but the many of its extended aftermath cannot be erased.
  • (19) The demonstrations' bloody ending has largely erased memories of the carnival of protest that preceded it: an astonishing uprising which lasted six weeks and drew in millions of people from around the country, threatening an end to communist rule.
  • (20) Erase even more, you cowardly regime,” Abo Bakr wrote on a wall in a message to the whitewashers.

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