What's the difference between cavity and concavity?

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.

Concavity


Definition:

  • (n.) A concave surface, or the space bounded by it; the state of being concave.

Example Sentences:

  • (1) In the absence of glutamine the aggregate is readily dissociated following dilution of the extract; that is, velocity concaves upward as a function of increasing protein concentration.
  • (2) Under the SEM, the unstained area of rods is always showing a concavity, which is just a nucleoid in sections under the TEM.
  • (3) Three cases are presented in which a focal concave deformity occurred along the greater curvature of the stomach on upper gastrointestinal (GI) series.
  • (4) This change in shape varied from a slight flattening of the LV and IVS during diastole to total reversal of the normal direction of septal curvature such that the IVS became concave toward the RV and convex toward the LV.
  • (5) The technique combines the conventional plotting the contour lines and the highlighting, by means of hatching, of the concavities (or convexities) of the 'surface' representative of radioactive distribution.
  • (6) The trapezoidal shape of the vertebrae and scarring of the soft tissues within the concavity made correction difficult.
  • (7) On freeze-fracture preparations, the fragments with concave profile, corresponding to the external fracture face of plasma membrane, displayed an intramembrane particle density (ranging from 0 to 750 particles per micron2) which is similar to that recorded on the corresponding fracture face of intact cells from the common lymphoblastic leukemia antigen positive leukemic cell line (Nalm-1) or of vesicles shed in the culture medium by Nalm-1 cells.
  • (8) In testicular and cauda spermatozoa NBD-phallacidin fluorescent material was present in the two ventral processes that extended from the upper concave surface of the sperm head; also fainter material occurred along the concave border and as a dorsocaudal spur.
  • (9) When viewed in the lateral projection, the concavities superimpose, lying in the posterior portion of the vertebral body.
  • (10) Dose-effect relationships for most of the sampling times were linear and sometimes linear-quadratic concave upward or downward.
  • (11) This should be prevented by a bone-graft operation along the concave side of the tibia.
  • (12) Since February 1982, 23 patients with scoliosis were treated by releasing the soft tissues on the concave side and plaster spinal fusion jacket.
  • (13) The DRT curves of all data were concave and appeared to have two discrete slopes (z(D) values).
  • (14) Between the concave surfaces of two bent cadaverine molecules exists water channels all along the short b axis.
  • (15) Homotropic cooperative effects were observed as shown by the concave downward curvature of the reciprocal plots.
  • (16) The late mortality is 3.8% per patient-year--standard disc group 2.9% per patient-year and convexo-concave group 4.3% per patient year (no significant difference).
  • (17) The relationship between chloride transport and extracellular chloride in the presence of bromide is concave upward which suggests that this anion inhibits chloride movement.
  • (18) (3) A row of regularly spaced ribosomes located in the concavity, but at some distance from the arciform filament.
  • (19) The authors also consider a problem of how to interpret the symptom of a "snake mouth" or a "concave lens" which (depending on its cause) can be either transient (in a large concrement) or stable (in an exophytic tumor, completely occluding the duct).
  • (20) In both maxillary and mandibular teeth, approximal concavities often started in enamel, extending down to the root surface.

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