What's the difference between cavity and niche?

Cavity


Definition:

  • (n.) Hollowness.
  • (n.) A hollow place; a hollow; as, the abdominal cavity.

Example Sentences:

  • (1) The content of the cavities was not stained by any of the immunocytochemical reactions applied.
  • (2) Membranes of this material were filled with islets of Langerhans and implanted in the peritoneal cavity of rats.
  • (3) In three of these patients this was associated with the presence of a previously well established abscess cavity.
  • (4) Our experience indicates that lateral rhinotomy is a safe, repeatable and cosmetically sound procedure that provides and excellent surgical approach to the nasal cavity and sinuses.
  • (5) All patients with localized subaortic hypertrophy had left ventricular hypertrophy (left ventricular mass or posterior wall thickness greater than 2 SD from normal) with a normal size cavity due to aortic valve disease (2 patients were also hypertensive).
  • (6) In the 12 prognostically most favourable ears the cavity was repneumatized.
  • (7) Scintigraphic pictures of the uterine cavity and oviducts were obtained with a Jumbo Toshiba gamma-camera; they were subsequently analysed by an Informatek SIMIS-3 data processing system.
  • (8) The cercaria, microcercous in type, is liberated and actively penetrates a second terrestrial pulmonate where development to the free metacercarial stage takes place in the pericardial cavity.
  • (9) A new technique to obliterate the mastoid volume or to reduce an old cavity by means of hydroxyapatite granulate is presented.
  • (10) In general, air from the mediastinum far more often enters the left pleural cavity than the right one.
  • (11) The advantages of the incision through the pars plana ciliaris are (1) easier approach to the vitreous cavity, (2) preservation of the crystalline lens and an intact iris, and (3) circumvention of the corneal and chamber angle complications sometimes associated with the transcorneal approach.
  • (12) The rational surgical methods of treatment in 85 patients with suppurative hepatic echinococcosis penetrating into the abdomen cavity are presented.
  • (13) Finally, carcinoma of the oral cavity in India can be said to be at least two diseases.
  • (14) A pilot study was undertaken to determine the prevalence of gas in the puerperal endometrial cavity and to determine whether this finding has any relationship to the mode of delivery or to the development of puerperal endometritis.
  • (15) The authors present a quite unused technique that helps to simplify the cavity preparation in Operative Dentistry.
  • (16) In several eyes, apparent intraretinal blood-filled cavities were seen acutely in the macular region and elsewhere.
  • (17) These views are very practical for inferior synovial cavity arthrograms performed in the dental operatory since panoramic radiographic machines have become common in modern dental practices.
  • (18) Aspergillomas generally arise from saprophytic colonization of a pre-existing pulmonary cavity with Aspergillus, and may be complicated by life-threatening hemoptosis.
  • (19) Failues of PAFD occurred primarily with the presence of phlegmonous collections and cavities with fistulous connection to bowel.
  • (20) n. from the body cavity of Scomber scombrus from the Indian ocean is described.

Niche


Definition:

  • (n.) A cavity, hollow, or recess, generally within the thickness of a wall, for a statue, bust, or other erect ornament. hence, any similar position, literal or figurative.

Example Sentences:

  • (1) Don't be afraid of being pigeonholed - it's great to have a niche.
  • (2) "We're not saying we're cutting niche parts," he said.
  • (3) The round window niche and membrane can be involved in clinical problems including perilymphatic fistulas, sensorineural hearing loss in otitis media, and a variety of others.
  • (4) But he quickly carved out a niche, introducing to an English-speaking audience the works of German-language writers, notably Friedrich Hölderlin, but also Brecht, Rilke, Grass and others.
  • (5) Namely: it takes one small, heavily publicised niche – affluent, usually white LGBTs – and presents them as representative of a whole spectrum of people.
  • (6) The social network remains a niche product, beloved by journalists, celebrities, and a hard core of miscellaneous obsessive users — but few others.
  • (7) The diversity of lake phytoplankton is unexpectedly high, since the epilimnion of a lake is continuously mixing and might be expected to have only one or at most a few niches for primary producers.
  • (8) The massive otosclerotic focus, obliterating the oval window niche, has a relatively high case incidence of 11-2 per cent in South Australia.
  • (9) Tech entrepreneurs will keep expanding into increasingly diverse niches, so it will be amusing to try and pick out the most obscure market being disrupted in 2014.
  • (10) -- (2) Nothing is known about a niche overlap of Austromenopon and Actornithophilus.
  • (11) The fundamental criterion was the size of the niche as established by radiologic examination.
  • (12) And because the market is expanding, ironically consoles may even have a larger customer base thanks to tablets and mobile devices: in a broader market, the 10% slice may end up bigger than the 100% slice of a smaller, niche market.
  • (13) The existence of equilibria at which there is no genetic load is examined.--The absolute fitness of any genotype is regarded as a function of location in the niche space and the population density at that location.
  • (14) Apparently the same SC system is adaptive in diverse species despite the very different behavioral repertories of these animals and their different ecological niches.
  • (15) As the sachets of powder, tubs of lotion, jars of jam, and bottles of juices and liqueurs that line his shelves testify, his hopes – and his money – are on a rather more niche fruit: baobab.
  • (16) The incorporation of interference into niche theory clarifies the competitive phenomenon of unstable equilibrium points, excess density compensation on islands, competitive avoidance by escape in time and space, the persistence of the "prudent predator," and the magnitude of the difference between the size of a species' fundamental niche and its realized niche.
  • (17) The oval window niche was filled with either 1 percent sodium hyaluronate or 0.9 percent NaCl.
  • (18) Furthermore, taking account of the visual system of certain species from other orders, it is assumed that the cytoarchitecture of the visual system is dependent more upon the ecological niche than on systematics.
  • (19) Revision of the left niche was undertaken shortly after the 5th bleeding two months postoperatively.
  • (20) A reimbursement system designed to encourage competition led to a "survival-of-the-fittest" mentality that prompted many managers to develop "competitive strategies" and look for "niche opportunities."