(n.) An impure, massive, flintlike quartz or hornstone, of a dull color.
Example Sentences:
(1) Occurrence of well-preserved rod-shaped and coccoid bacteria in the Precambrian Gunflint chert (1.9 x 10(9) years old) has been demonstrated by electron microscopy.
(2) In order to evaluate the degree of morphological preservation of erythrocytes in bloodstains, an accidental human blood smear on white chert and several experimental bloodstains on hard substrates (the same stone-white chert; another type of stone-graywacke; a non-stone support-stainless steel), were stored in a room, in non-sterile and fluctuating conditions, for lengths of time ranging from 3 to 18 months.
(3) Large amounts of well preserved microfossils have been reported from the cherts of the Upper Proterozoic of the Bohemian Massif (Middle Europe).
(4) Two billion year old black chert lenses from the Duck Creek formation, northwestern Western Australia, contain abundant organically preserved microorganisms which are morphologically similar to fossils of approximately the same age from the Gunflint formation, Ontario.
Flint
Definition:
(n.) A massive, somewhat impure variety of quartz, in color usually of a gray to brown or nearly black, breaking with a conchoidal fracture and sharp edge. It is very hard, and strikes fire with steel.
(n.) A piece of flint for striking fire; -- formerly much used, esp. in the hammers of gun locks.
(n.) Anything extremely hard, unimpressible, and unyielding, like flint.
Example Sentences:
(1) Caroline Flint, a Labour MP and former cabinet minister, called for all corporate tax affairs to be made public.
(2) These data imply that Silvadene controls S aureus-generated burn wound infections better than the Flint product.
(3) HSBC’s shares have been on a rollercoaster ride since Gulliver and departing chairman Douglas Flint took charge six years ago, and are little changed from where they started out.
(4) Retreating to your lab and hoping it will all go away is not going to be the best strategy Andrew Rosenberg, National Oceanic and Atmospheric Administration In March, Bill Nye , the bow-tied embodiment of science for many Americans, and Mona Hanna-Attisha, a pediatrician who alerted the world to soaring levels of lead in the blood of children in Flint, Michigan, were named as honorary co-chairs.
(5) Caroline Flint, Labour's spokesperson for energy and climate change, said the Ofgem report showed why a price freeze is needed: "Labour's price freeze will save money for 27 million households and 2.4 million businesses and our plans to reset the market will deliver fairer prices in the future.
(6) 'Archaeology on steroids': huge ritual arena discovered near Stonehenge Read more Archaeologists have found evidence that a big tree fell over and its base provided a wall which was then lined with flint.
(7) Flint became the first Home Office minister to admit that she tried smoking dope while a student in the 80s, a fact she revealed when pushing reclassification of cannabis through the Commons.
(8) A 17-day, in situ, biomonitoring study using caged, juvenile channel catfish (Ictalurus punctatus) was conducted at five sites along a 9-km section of the Flint River at the Anthony Ragnone Wastewater Treatment Plant near Montrose, Michigan.
(9) Flint walked out in protest at not being offered a full cabinet post.
(10) He said Douglas Flint, chairman of HSBC, and Lord Blackwell, the new chairman of Lloyds Banking Group, would agree with his view that chairing a bank was a full-time role.
(11) But Brown says he worked "very, very closely" with Flint when she was housing minister.
(12) Figures close to Brown were irritated that Flint was finding time to pose for the cameras while they felt she had yet to master the highly intricate details of her brief as Europe minister.
(13) The people of the New England electorate, with Barnaby Joyce as their MP, had thought he would be able to protect the Liverpool Plains for them,” Lock the Gate Alliance spokeswoman Carmel Flint told reporters.
(14) Tempers frayed at the last debate in Flint, Michigan, at the weekend, when Clinton accused Sanders of voting against the auto industry bailout – a charge he vehemently denies and that appears not to have swayed voters at the centre of the US car industry.
(15) A controversy exists with regard to the relative efficacy of two preparations of silver sulfadiazine (AgSD), Silvadene and Flint's Silver Sulfadiazine Cream.
(16) When asked about this, Flint said: “Nobody wants to push the button.
(17) Caroline Flint, shadow energy and climate change secretary, said the referral underlined why her party was committed to breaking up the big six and freezing energy bills till 2017, should it win power in elections next year.
(18) Flint said five months was too long to wait; a new leader would boost Labour in the polls and attract new funding from supporters.
(19) The water crisis in Flint is a sobering reminder of America’s long history of disregard when it comes to the welfare of black bodies – I am not the first to note how eerily reminiscent it is of the Tuskegee Experiment in the 1970s, when hundreds of black men with syphilis were not told they had the disease so that US Public Health Services could study its progression.
(20) Flint said the public was fed up with hearing the "same old excuses" from the energy industry.