What's the difference between ridge and watershed?

Ridge


Definition:

  • (n.) The back, or top of the back; a crest.
  • (n.) A range of hills or mountains, or the upper part of such a range; any extended elevation between valleys.
  • (n.) A raised line or strip, as of ground thrown up by a plow or left between furrows or ditches, or as on the surface of metal, cloth, or bone, etc.
  • (n.) The intersection of two surface forming a salient angle, especially the angle at the top between the opposite slopes or sides of a roof or a vault.
  • (n.) The highest portion of the glacis proceeding from the salient angle of the covered way.
  • (v. t.) To form a ridge of; to furnish with a ridge or ridges; to make into a ridge or ridges.
  • (v. t.) To form into ridges with the plow, as land.
  • (v. t.) To wrinkle.

Example Sentences:

  • (1) The invaginations were classified into four easily recognized types: regular, chunky, filigree, and ridge (present only in axon hillock regions).
  • (2) On the tangential views the inclinations of the future implants were estimated and the part of the alveolar ridge having a width less than 5 mm, which is the minimum width for housing an implant, was compiled.
  • (3) After 1 day in vitro the explants were partly encircled by epithelium which had proliferated from the cut edges of the explant and from rete ridges near the cut edge (epiboly).
  • (4) We have now found that these cells, cultured as a monolayer, are able to undergo rapid morphogenesis forming ridges and balls around collagen fibres, when soluble collagen type I is added to the medium.
  • (5) Besides the rough, wrinkled, and brown or black surface of the fingertips, microwrinkles of the epidermis occur on the skin ridges, which have so far not been described.
  • (6) The results of the rapid-freeze and deep-etch procedure showed that the ridges observed by the surface replica method consisted of linear arrangements of elliptical particles on the ES face of the plasma membrane.
  • (7) The narrow intercellular ridge is smooth, whereas the epithelial cells have small cytoplasmic knobs between the cilia.
  • (8) The calculations revealed that local hypoxia and lipoprotein accumulation may occur at the ridges, leading to subsequent intimal thickening and ridge growth.
  • (9) The quality of the alveolar ridge and the denture as well as the functional status of the craniomandibular system were evaluated in detail.
  • (10) The use of an intraoral alveolar ridge soft tissue expander to aid in reconstruction of the alveolar ridge is described, and the results in five cases are reported.
  • (11) Sixty-three per cent of the implants were operated in immediately after tooth extraction, whereas the rest were installed in a healed bony alveolar ridge.
  • (12) After the treatment in toto of the embryos from various species of Anura by cAMP, the number of primordial germ cells (PGC) in genital ridges is strongly reduced; the most part of the PGC are found in the endoderm.
  • (13) The innervation to the rete ridge is uniquely absent in the rabbit.
  • (14) The atrial complex was a common chamber with an attempt at division into two parts by a circular ridge of tissue; the ventricular complex was formed by three chambers which were all communicating between each other in the superior margin of their muscular interventricular septum.
  • (15) The other main sites of expression are the genital ridge, fetal gonad and mesothelium.
  • (16) Cells with demarcated borders showed rearrangement of microvilli into globular chains or ridges which lined up with the branching membrane.
  • (17) With the mobilization of the two halves of the face it is possible to approximate the orbits, simultaneously elongating the center of the face and normalizing the maxillary alveolar ridge.
  • (18) The air pressure in the skin cup was continually adjusted (using an electromechanical servo-control system) to pull the skin upward and to hold it perfectly flat across the upper ridge of the Teflon cylinder.
  • (19) Clinical findings as well as fingerprint ridge counts were typical of the syndrome.
  • (20) By design these plants are adjacent to the AEC's Oak Ridge National Laboratory, and such a location would seem ideal for an experiment on the wedding of nuclear and fossil sources of energy.

Watershed


Definition:

  • (n.) The whole region or extent of country which contributes to the supply of a river or lake.
  • (n.) The line of division between two adjacent rivers or lakes with respect to the flow of water by natural channels into them; the natural boundary of a basin.

Example Sentences:

  • (1) Anterior borderzone brachial paralysis (ABBP) is a hemodynamic ischemic syndrome of the watershed zone between the anterior and middle cerebral arteries.
  • (2) Expect growing localised tensions around specific watersheds between one ethnic group and another, between farmers and cities, and so forth, he warns: “Rather than India versus Pakistan, it’s Karnataka versus Tamil Nadu over the allocation of a river that is shared between those two states.” The Water Stress Index , produced by UK risk analysis firm Maplecroft, provides an indication where water-related conflicts might be most likely to occur.
  • (3) The issue was first raised by BBC2 controller Janice Hadlow and brought to the attention of the then BBC Vision director Jana Bennett – number two to BBC director general Mark Thompson – after the sitcom, which was planned for a post-9pm watershed slot, was moved to pre-watershed.
  • (4) Consequently, the insular ribbon effectively becomes a watershed arterial zone.
  • (5) But campaign groups are now convinced that they have lost the battle on the pre-watershed ban.
  • (6) Cerebral watershed infarctions usually occur after a period of acute and severe systemic hypotension resulting in a distinctive clinical picture.
  • (7) Monthly mean concentrations of dieldrin in river water and most aquatic organisms were highest in June and July, soon after aldrin had been applied to corn land in the watershed.
  • (8) It marked a watershed in public perceptions of Brown, and represents the biggest unforced political error in the history of New Labour.
  • (9) Pardew's antics will generate yet more negative headlines for a club never far from controversy for one reason or another, and the manager admits that the episode may well be a personal watershed.
  • (10) Last month, public discontent spilled over for the first time when Putin was booed during an appearance at a martial arts fight , an event described by analysts as a watershed moment in his rule.
  • (11) The oxygen extraction fraction rose with the distance from the anterior portion of the circle of Willis, attaining the highest value in the superior parietal and posterior temporo-occipital watershed area.
  • (12) Tc-99m HMPAO SPECT may be more sensitive than CT in the detection of infarctions in the watershed distribution.
  • (13) Lee Hsien Loong acknowledged that was a watershed, promising to listen to voters.
  • (14) In 1819, the area of Manchester then known as St Peter's Field was the scene of a watershed moment in the struggle for universal suffrage, when around 15 protesters were variously bayoneted, shot and trampled to death in the so-called Peterloo Massacre .
  • (15) Swine faeces from three pig farms in the La Crosse River watershed near La Crosse, Wisconsin, were sampled for Yersinia enterocolitica; 19 presumptive isolates were recovered and biochemically confirmed as Y. enterocolitica.
  • (16) If that happens, the Britain that votes to join the anti-Isis alliance will have crossed a post-Iraq watershed.
  • (17) The lesions were thought to be in the watershed areas of the regional arterial supplies, and the areas were considered to be prone to ischemia.
  • (18) The position of the watershed zone could be important to explain the visual field defect in anterior ischemic optic neuropathy and glaucoma.
  • (19) Only a few deep infarctions were watershed infarction possibly.
  • (20) Watershed cerebral infarcts can now be identified in stroke survivors using CT scanning.