What's the difference between conundrum and corundum?

Conundrum


Definition:

  • (n.) A kind of riddle based upon some fanciful or fantastic resemblance between things quite unlike; a puzzling question, of which the answer is or involves a pun.
  • (n.) A question to which only a conjectural answer can be made.

Example Sentences:

  • (1) The spinal form of MS is a clinical conundrum, the solution of which may yield many answers; to be certain that it is MS and not another disease causing the myelopathy is often difficult.
  • (2) KR: She was truly in a conundrum because without the app, she felt too worthless to try and fix it by installing an update.
  • (3) Ben Carson: inside the worldview of a political conundrum Read more One such priority, he said, was protecting the “religious freedom” of people who believe on religious grounds that marriage is “between one man and one woman”.
  • (4) Tony Goldstone , of the MRC Clinical Science Centre at Imperial College London, scanned the brains of people who skipped meals and found mechanisms at work that could help explain the conundrum.
  • (5) Energy policy's central conundrum today is how to go green at the lowest possible cost.
  • (6) A major constraint is the implementation conundrum.
  • (7) On the road to 2015, all political parties will need to tackle this conundrum if there is going to be a seismic shift away from traditional thinking about how health and social care are delivered.
  • (8) Needless to say, BoKlok's brains have grappled with the conundrum.
  • (9) But the need to change and to integrate health and social care presents a huge conundrum for policymakers, given that such reforms remain "notoriously" controversial and unpopular with the public.
  • (10) These comparable characteristics may help explain a continuing conundrum in the responses to disorder literature: the loose coupling between crime and fear levels at the local level.
  • (11) To explore this conundrum, we need to start by looking at what happiness actually means.
  • (12) It is concluded that properly conducted cross-cultural research can yield results which can help to resolve the conundrum of depression and respond to the challenge which depression poses to the society, to public health authorities and to the individuals who suffer from it.
  • (13) The anser to this conundrum, that the kidney was sometimes the cause and sometimes the consequence of circulatory disease was suggested by Mahomed's discovery of essential hypertension but confirmation had to await the invention of a clinically useful sphygmomanometer.
  • (14) Impossible to count.” He added: “No one knows.” The city has spent years trying to resolve this conundrum.
  • (15) Newspapers in the US had never before had to deal with the conundrum of what to do with leaked documents that had been procured illegally by people not in official positions.
  • (16) Labour, which has yet to resolve its own testing conundrums, will have to confront these challenges one day too.
  • (17) The British government has given its first official hint that it hopes the Irish external border will provide the solution to one of the most vexing conundrums of Brexit: how to pull up the immigration drawbridge without installing a “hard border” of customs posts and passport checks between Northern Ireland and Ireland.
  • (18) That’s the conundrum.” In a statement on Wednesday, Farron said the time had come for a deputy leader, given the party had elected a number of new women MPs when only men were elected in 2015.
  • (19) As the election haze clears, Trump’s China conundrum will become clear | Jonathan Fenby Read more That’s Trump’s first contribution to a Pacific agenda: an increase in South Koreans and Japanese who believe they should be nuclear-armed because American cannot be relied on, especially with North Korea fine-tuning its missile capacity.
  • (20) As the election haze clears, Trump’s China conundrum will become clear | Jonathan Fenby Read more Zhang Xiangchen, China’s deputy international trade representative, also told a news conference in Washington on Wednesday that a broad consensus of academics, business people and government officials have concluded that China is not manipulating its yuan currency to gain an unfair trade advantage, as Trump has charged.

Corundum


Definition:

  • (n.) The earth alumina, as found native in a crystalline state, including sapphire, which is the fine blue variety; the oriental ruby, or red sapphire; the oriental amethyst, or purple sapphire; and adamantine spar, the hair-brown variety. It is the hardest substance found native, next to the diamond.

Example Sentences:

  • (1) Guinea pig splenic lymphocytes and peritoneal macrophage cultures were incubated with quartz (DQ12), Corundum and aspirin as prostaglandin inhibitor.
  • (2) 3M discs and the rough corundum discs caused significantly more surface roughness of the Cosmic surface.
  • (3) The maximum values of tensile strength were measured when 200-250 microns corundum was used.
  • (4) Experiments carried out over a long period have shown that corundum ceramic is a strong material and is biologically inert.
  • (5) At desired time of incubation, the bacteria were washed with water, disintegrated with powdered corundum and in resulting cell-free extracts L-asparaginase activity was determined by the Conway method.
  • (6) Corundum produced no significant effect on the enzyme activity.
  • (7) The results showed that quartz induced a substantial increase of lipid peroxide in PAMs compared with both samples (dust-free or exposed to corundum).
  • (8) No adverse effects of corundum ceramics were noted.
  • (9) Corundum, which is sapphire, is number nine.” “The relative hardness of sapphire is 400, compared to quartz which is 100, so it is a lot harder than quartz,” Alford stressed.
  • (10) The results were compared with quartz dust as the known fibrogenic dust and emery dust (Corundum) was used as a control dust.
  • (11) Raman spectroscopy showed that both the socket and the beads are composed of alpha-Al2O3 (corundum), while the bioactive glass (alkaline and alkaline earth alumosilicate with a small quantity of zirconium oxide) showed this to have an intermediate structure between that of vitreous silica and that of the alkaline and alkaline earth disilicate glasses.
  • (12) All the lungs contained quartz and silicates and in most of the necropsy cases carborundum and corundum could also be shown.
  • (13) Quartz treatment did not alter esterase activity whereas corundum exposed cultures showed a decline.
  • (14) NH, a producer of glucoamylase, were cultivated in the presence of various supporting materials (three microspherical zeolitic particles, alpha-alumina and foam corundum).
  • (15) The results obtained showed that a significant inhibition of antibody formation to human albumin took place in animals with experimental silicosis in comparison with control rats that were given physiological saline or corundum as established by passive haemagglutination reaction according to Boyden as well as enhancement of the intensity of the delayed-type hypersensitivity to tuberculin.
  • (16) A complex of implanted dentures was manufactured with a corundum ceramic compound "Kador" made in the USSR.
  • (17) According to the present in vitro study it is possible to bond NPM alloy restorations with Panavia Ex several days after air brushing with corundum.
  • (18) Implants of corundum ceramic have been used in the treatment of 38 patients with bony tumours of the limbs.
  • (19) The patient's spine has been fixed by means of implant, made of corundum porous ceramic, metal plate and lavsan band.
  • (20) The values of the R(a) and Rmax were grown proportionally with the grain of corundum, but it was not resulted in the same increase of the tensile strength.

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