What's the difference between arch and quoin?

Arch


Definition:

  • (n.) Any part of a curved line.
  • (n.) Usually a curved member made up of separate wedge-shaped solids, with the joints between them disposed in the direction of the radii of the curve; used to support the wall or other weight above an opening. In this sense arches are segmental, round (i. e., semicircular), or pointed.
  • (n.) A flat arch is a member constructed of stones cut into wedges or other shapes so as to support each other without rising in a curve.
  • (n.) Any place covered by an arch; an archway; as, to pass into the arch of a bridge.
  • (n.) Any curvature in the form of an arch; as, the arch of the aorta.
  • (v. t.) To cover with an arch or arches.
  • (v. t.) To form or bend into the shape of an arch.
  • (v. i.) To form into an arch; to curve.
  • (a.) Chief; eminent; greatest; principal.
  • (a.) Cunning or sly; sportively mischievous; roguish; as, an arch look, word, lad.
  • (n.) A chief.

Example Sentences:

  • (1) Excessive lip protrusion was eliminated, and arch leveled.
  • (2) The temperature increased from the anterior to the posterior region on both buccal and lingual sides of both arches.
  • (3) Administration of one of the precursors of noradrenaline l-DOPA not only prevented the decrease in tissue noradrenaline content in myocardium, but restored completely its reserves, exhausted by electrostimulation of the aortic arch.
  • (4) A forty-four-year-old woman with Takayasu's arteritis and involvement of the aortic arch and its main branches complained of precordial pain on effort.
  • (5) Koons provoked a bigger stir with the news that he would be showing with gallery owner David Zwirner next year in an apparent defection from Zwirner's arch-rival Larry Gagosian, the world's most powerful art dealer.
  • (6) Global 'abnormality', hunching (rigid arching of back), hindlimb abduction, forepaw myoclonus, stereotyped lateral head movements, backing, and immobility occurred significantly only in drug-treated rats.
  • (7) Between March 1986 and September 1988, 38 patients underwent extended aortic resection (aortic valve, ascending aorta, and arch) for acute type-A aortic dissection with aortic valve insufficiency; deep hypothermia and circulatory arrest were used.
  • (8) Other associated malformations were an interrupted aortic arch and an atrial septal defect.
  • (9) The sucker, covered with basal lamina, has a constant volume; its layer of muscles resists deformation and supports the stability of the arch.
  • (10) In the anaesthetized dog the carotid sinuses and aortic arch were isolated from the circulation and separately perfused with blood by a method which enabled the mean pressure, pulse pressure and pulse frequency to be varied independently in each vasosensory area.
  • (11) The data presented in this paper confirm the need for stimulation of the pudendal reflex arch to achieve physiological conditions.
  • (12) This article describes the application and efficacy of the lipbumper used in the lower arch.
  • (13) Adjustment of posterior arch width and dental alignment, using semi-rapid maxillary expansion by means of an upper removable appliance, to co-ordinate the anticipated positions for the arches.
  • (14) The most commonly associated lesions were ventricular septal defect (50%), hypoplastic aortic arch (45%), patent ductus arteriosus (41%), transposition of great arteries (22.7%) and other intracardiac lesions comprised 30%.
  • (15) This malformation was demonstrated in alcian-blue- and alizarin-red-stained fetal skeletons by measurements of the distance between the cartilaginous ends of each vertebral arch.
  • (16) No correlation was found between aortic arch size and the size of the left-to-right shunt in cases of DAP.
  • (17) After 48 hours in culture, all specimens were examined at 6x magnification for defects in the facial arches, head fold, and neural tube fusion.
  • (18) Narrow paths weave among moss-covered ornate arches and towers on the 80-acre site, and huge abstract sculptures and staircases lead nowhere, but up to the sky.
  • (19) Although different dimensions of the face and head and the upper dental arch width were found to be significantly correlated in children with normal occlusion, this relationship is not found to be strong enough in children with different categories of malocclusion.
  • (20) We suggest that incomplete development of the bones of the dorsal neural arches of the upper sacrum may be a marker of incomplete neurogenesis of the sacral nerves.

Quoin


Definition:

  • (n.) Originally, a solid exterior angle, as of a building; now, commonly, one of the selected pieces of material by which the corner is marked.
  • (n.) A wedgelike piece of stone, wood metal, or other material, used for various purposes
  • (n.) to support and steady a stone.
  • (n.) To support the breech of a cannon.
  • (n.) To wedge or lock up a form within a chase.
  • (n.) To prevent casks from rolling.

Example Sentences: