What's the difference between crevice and rock?

Crevice


Definition:

  • (n.) A narrow opening resulting from a split or crack or the separation of a junction; a cleft; a fissure; a rent.
  • (v. t.) To crack; to flaw.

Example Sentences:

  • (1) Crevice corrosion propagation for gamma 2-free vs. gamma 2-containing amalgams was characterized by lower acceleration and maximum rates during the most dynamic period.
  • (2) Similarly, significant correlations were found between the individual tissue reaction scores and crevice corrosion scores from the 201 individual sites, again for all devices and for the asymptomatic and symptomatic removal groups.
  • (3) The objective of this study was to determine the in vitro corrosion products that resulted from crevice corrosion of low- and high-copper dental amalgams.
  • (4) The present study, along with that of the Ser82 variant protein (Louie et al., 1988b), clearly establishes the link between dielectric constant within the heme crevice and reduction potential.
  • (5) An iodine preparation removed 95% of accessible organisms, but about 20% of bacteria were protected by follicles, crevices, and lipids.
  • (6) The reaction of the Paracoccus oxidase with its own soluble cytochrome c550, which has a highly negative hemisphere on the side of the molecule away from the heme crevice, has different properties from those seen in its reaction with bovine cytochrome c. However the properties all change to be like those with bovine cytochrome c on addition of poly-L-lysine.
  • (7) Polymorphonuclear leukocytes (PMN) are predominant cells in the gingival crevice and saliva, and may play an important role in oral bacteria.
  • (8) By exploiting this bat's preference to roost in crevices, we could separately measure O2 uptake during ventilatory bouts and apneic periods using a flow-through metabolic chamber with a small dead space volume and short time constant.
  • (9) This implies that binding crevices for two chlorophylls and half of peridinins (four to five) are located at some distance from each other.
  • (10) The susceptibility of the 316 L CW austenitic stainless steel to pitting and relative resistance to crevice corrosion were measured by cyclic anodic polarization tests.
  • (11) Modification of lysines 8, 13, 25, 27, 72, 79, or 87 surrounding the heme crevice was found to significantly lower the rate of reaction, while modification of lysines in other regions had no effect.
  • (12) The introduction of an extra amino acid residue and of other changes in the crevice where the heme group is located is the likely cause of the instability of this hemoglobin variant.
  • (13) Since the pH of the gingival crevice increases from below neutrality in health to above pH 8 in disease, we decided to investigate the effect of environmental pH on the growth and enzyme activity of Bacteroides gingivalis W50.
  • (14) However, with a spin label previously shown to project to the lip on the crevice a clear N--F transition as well as the subsequent acid expansion are observed.
  • (15) On the atrioventricular valves, the deposition in this crevice was most severe on the outflow surface adjacent to the minor flow orifice.
  • (16) A new crevice geometry with elliptically shaped walls is introduced which reduces the height of the crevice needed for bubble emergence and relaxes the constraints for the stability of gas nuclei.
  • (17) Corrosion degradation of amalgam fillings is due mainly to localized corrosion cells in pores and crevices.
  • (18) It is believed to impart hydrophobicity while it could also determine the microgeometry of any crevices vital for bubble formation or retention.
  • (19) Gingival fluid was sampled from the orifices of the gingival crevices in five male subjects with clinically healthy gingiva.
  • (20) These bands can be assigned to modes which include strong contributions of vibrations largely localized in the propionate-carrying pyrrole rings A and D. This indicates structural differences in the deeper part of the heme crevice, remote from the mutation site.

Rock


Definition:

  • (n.) See Roc.
  • (n.) A distaff used in spinning; the staff or frame about which flax is arranged, and from which the thread is drawn in spinning.
  • (n.) A large concreted mass of stony material; a large fixed stone or crag. See Stone.
  • (n.) Any natural deposit forming a part of the earth's crust, whether consolidated or not, including sand, earth, clay, etc., when in natural beds.
  • (n.) That which resembles a rock in firmness; a defense; a support; a refuge.
  • (n.) Fig.: Anything which causes a disaster or wreck resembling the wreck of a vessel upon a rock.
  • (n.) The striped bass. See under Bass.
  • (v. t.) To cause to sway backward and forward, as a body resting on a support beneath; as, to rock a cradle or chair; to cause to vibrate; to cause to reel or totter.
  • (v. t.) To move as in a cradle; hence, to put to sleep by rocking; to still; to quiet.
  • (v. i.) To move or be moved backward and forward; to be violently agitated; to reel; to totter.
  • (v. i.) To roll or saway backward and forward upon a support; as, to rock in a rocking-chair.

Example Sentences:

  • (1) I approached the public inquiry after much soul-searching, weighing up the ramifications of "rocking the boat" with the potential longer-term gains of a more robust and sustainable regulator.
  • (2) He had links to networks including the Hammerskin Nation and was involved in an underground music scene often referred to as "white power music" or "hate rock".
  • (3) The Ibiza Rocks hotel is aimed at a young clientele who'd never make it into the VIP section of Pacha.
  • (4) Meanwhile, Brighton rock duo Royal Blood top this week's album chart with their self-titled album, scoring the UK's fastest selling British rock debut in three years.
  • (5) Facebook Twitter Pinterest Trump signs order reviving controversial pipeline projects “The Obama administration correctly found that the Tribe’s treaty rights needed to be respected, and that the easement should not be granted without further review and consideration of alternative crossing locations,” said Jan Hasselman, an attorney for the Standing Rock Sioux tribe.
  • (6) One species (the goldfish) has an extensive fundus circulation while the other (the rock bass) has a minimal one.
  • (7) You can tell them that Deutsche Bank remains absolutely rock solid, given our strong capital and risk position.
  • (8) Rocking the hepatocyte-splenocyte cultures changed the elution profile from linear to convex.
  • (9) The 180-acre imperial palace appears to send ripples through the surrounding urban grain like a rock thrown into a pond, forming the successive layers of ring-roads.
  • (10) Russell is a former director of Northern Rock while Crosby is the former chief executive of HBOS.
  • (11) Gunfire and explosions rocked Bangkok following clashes between pro-government "red shirts" and protesters, leading to fears of further violence as Thais head to the polls.
  • (12) "And if you're pursuing music as the equivalent of your nine-to-five, and you'd quite like to be doing that for years to come, it's in your interest not to rock the boat."
  • (13) It was sparked by Ferguson's decision to sue Magnier over the lucrative stud fees now being earned by retired racehorse Rock of Gibraltar, which the Scot used to co-own.
  • (14) The involvement of one of South Korea’s most powerful men has rocked the country’s business world, as it signalled that prosecutors were prepared to use the full force of the law against the head of a company whose revenues are equivalent to a fifth of the country’s GDP.
  • (15) Emotional reactivity of patients with endogenous depression and healthy test subjects towards classic and rock music was compared.
  • (16) The Volkswagen Group has announced €1bn (£750m) of spending cuts at its core VW division to help pay for a product overhaul following the emissions testing scandal that has rocked Europe’s biggest carmaker.
  • (17) Loss-making Northern Rock is axing another 680 jobs as it cuts costs in preparation for a return to the private sector after being nationalised in February 2008 .
  • (18) Big musical acts (such as BB King, Keith Urban and Queens of the Stone Age) appear during the summer concert lineup but there are also drop-in yoga sessions, and hiking and biking trails wind through sculpted rocks and wildflowers.
  • (19) Just about.” That one went over like a sublime Chris Rock riff.
  • (20) For a while yesterday, Hazel Blears's selfishly-timed resignation with her rude "rock the boat" brooch send shudders of revulsion through some in the party.