What's the difference between hardness and petrous?
Hardness
Definition:
(n.) The quality or state of being hard, literally or figuratively.
(n.) The cohesion of the particles on the surface of a body, determined by its capacity to scratch another, or be itself scratched;-measured among minerals on a scale of which diamond and talc form the extremes.
(n.) The peculiar quality exhibited by water which has mineral salts dissolved in it. Such water forms an insoluble compound with soap, and is hence unfit for washing purposes.
Example Sentences:
(1) Lucy and Ed will combine coverage of hard and breaking news with a commitment to investigative journalism, which their track record so clearly demonstrates”.
(2) Sierra Leone is one of the three West Africa nations hit hard by an Ebola epidemic this year.
(3) Topical and systemic antibiotic therapy is common in dermatology, yet it is hard to find a rationale for a particular route in some diseases.
(4) Given Australia’s number one position as the worst carbon emitter per capita among major western nations it seems hardly surprising that islanders from Fiji, Samoa, Vanuatu and other small island developing states have been turning to Australia with growing exasperation demanding the country demonstrate an appropriate response and responsibility.
(5) They had learned through hard experience what Frederick Douglass once taught -- that freedom is not given, it must be won, through struggle and discipline, persistence and faith.
(6) In 60 rhesus monkeys with experimental renovascular malignant arterial hypertension (25 one-kidney and 35 two-kidney model animals), we studied the so-called 'hard exudates' or white retinal deposits in detail (by ophthalmoscopy, and stereoscopic color fundus photography and fluorescein fundus angiography, on long-term follow-up).
(7) It is a moment to be grateful for what remains of Labour's hard left: an amendment to scrap the cap was at least tabled by John McDonnell and Jeremy Corbyn but stood no chance.
(8) She stopped working only when the pain made it hard for her to get to work.
(9) He was reclusive, I know that, and he was often given a hard time for it.
(10) This defeat, though, is hardly a good calling card for the main job.
(11) Since this test is easily performed and hardly stresses the patient, it should routinely be the initial one for the diagnosis of renal osteopathy.
(12) Never become so enamored of your own smarts that you stop signing up for life’s hard classes.
(13) But I don't wish to be too hard on the judge for not taking that view.
(14) Our campaign has been going for some time and each step in our progress has been hard won, by campaigners paid and volunteer alike.
(15) I am rooting hard for you.” Ronald Reagan simply told his former vice-president Bush: “Don’t let the turkeys get you down.” By 10.30am Michelle Obama and Melania Trump will join the outgoing and incoming presidents in a presidential limousine to drive to the Capitol.
(16) All the same, it's hard to approach the school, which charges nearly £28,000 for boarders and nearly £19,000 for day girls and is sometimes called "the girls' Eton", without a few prejudices.
(17) Governmental officials as well as medical scientists in Taiwan have worked hard in recent years to develop and to implement various measures, such as prenatal diagnosis and neonatal screening, to lower the incidence of hereditary diseases and mental retardation in the population.
(18) Cooper, who was briefly a social worker in Los Angeles, also suggests working hard to build a rapport with colleagues in hotdesking situations.
(19) Critics of wind power peddle the same old myths about investment in new energy sources adding to families' fuel bills , preferring to pick a fight with people concerned about the environment, than stand up to vested interests in the energy industry, for the hard-pressed families and pensioners being ripped off by the energy giants.
(20) The spirit is great here, the players work very hard, we kept the belief when we were in third place and now we are here.
Petrous
Definition:
(a.) Like stone; hard; stony; rocky; as, the petrous part of the temporal bone.
(a.) Same as Petrosal.
Example Sentences:
(1) When the method proposed by Trela (1975) is applied, thin layers of the petrous crest are chiselled out until the common crus of the superior and posterior semi-circular becomes apparent.
(2) This included estimation of the furthest distance that the cooling fluid, using coloured water, and the bone chips of a dry petrous temporal bone can be thrown, and the spread of the fine dust produced by the drilling using a staph.
(3) Skull base traumatic aneurysms most commonly involve the petrous, cavernous, or supraclinoid carotid artery and also show a predominance in teenage boys.
(4) The right petrous bone was hypoplastic and showed total superior dehiscence of the internal acoustic meatus.
(5) The method of choice for evaluating the position and appearance of the cochlear implant proved to be conventional tomography of the petrous bone in the frontal transorbital plane.
(6) 3) Despite displacement of the arcuate eminence, the SSC tended to remain perpendicular to the petrous ridge and 60 degrees from the internal auditory canal.
(7) An unusual case of aneurysmal dilatation of both petrous and cavernous carotid arteries and the vertebral-basilar junction in a child is presented.
(8) Tomography of the petrous bones showed, in both cases, an upward tilt of the long axes of the bones including their auditory canals, generalized sclerosis of the petrous pyramids and enlargement of the ossicles.
(9) Thin (1 mm) section CT in axial and coronal planes is the best imaging investigation of the petrous temporal bones but the place of magnetic resonance scanning to confirm that the inner ear is fluid-filled and polytomography to show a multichannel implant in the cochlea is discussed.
(10) A case of primary chondromyxoid fibroma of the petrous and sphenoid bones extending into the posterior clinoid process, sella, and cavernous sinus in a 26-year-old man is reported.
(11) The Authors conceive the petrous bone as made of four segments bounded by two vertical plans, one passing through the anterior wall of the internal auditory canal and the posterior wall of the external auditory canal, the other passing through the inner aspect of the tympanic cavity and the outer aspect of the labyrinthe.
(12) Drilling away one or several segments realizes a trans-petrous approach which always begins by drilling away the posterior-external segment, the retro-labyrinthine segment.
(13) In an attempt to find a more suitable bypass site for grafting, the petrous portion of 50 carotid arteries was studied in cadavers.
(14) Optimal techniques for the preoperative assessment and intraoperative management of the petrous carotid artery remain undefined.
(15) The inferior approach followed the petrous internal carotid artery (ICA) into the CS after an extradural subtemporal exposure or after a combined subtemporal and infratemporal fossa exposure.
(16) The distance, between the posterior extension of the sphenoidal sinus and the apex cell at the medial-anterior tip of the petrous bone, is between 8-16 mm and the contact of the both separated by thin bony wall (less than 0.5 mm) was seen in 3 adult cases (0.9%).
(17) In all cases but one, the tumors were round, or oval-shaped, well-delineated, and did not present significant contact with the petrous bone.
(18) This was associated with a right transverse fracture of the petrous bone and an intact tympanic membrane.
(19) In order to spare the cochlea and give adequate exposure to the apical cells, the middle fossa approach to the petrous apex is presented, to be used alone or in conjunction with mastoidectomy.
(20) We present a new approach to the skull base, medial and superior to the internal auditory canal, for tumors involving the anterior-superior cerebellopontine angle, petrous apex, and clivus.