Definition of concavity in English:

concavity

noun

mass noun
  • 1The state or quality of being concave.

    ‘the concavity of her stomach’
    • ‘Ontogenetic thickening of branches reduces the degree of dorsal concavity.’
    • ‘A polarity is set up between the assertive convex solidity of Broadcasting House and the receptive concavity and lightness of the suspended facade.’
    • ‘With increasing quantiles, the quadratic coefficient became more negative, implying increased concavity of the inverted parabolic function.’
    • ‘Then the T wave becomes broad and the ST segment elevates, losing its normal concavity.’
    • ‘There is a characteristic anterior pointing and medial concavity of the frontal horns, seen on the coronal scans.’
    • ‘Both Dr Lee and Dr Moore-Gillon agreed that the flow volume loops produced in the MAP LFTs showed some concavity, which was suggestive of airflow obstruction.’
    • ‘It only reflects the consequence of an empirical fact, the degree of concavity of individual utility functions.’
    • ‘Positive own-price flexibilities violate quasi concavity of the underlying distance function, although the fact that these estimates are essentially zero moderates this concern.’
    • ‘However, survival curves for all the mutants showed some upward concavity, which would be consistent with a resistant subpopulation of cells.’
    • ‘Keel angle and body concavity / convexity measurements (described above) were recorded from CT scans at several locations along the body.’
    • ‘The degree of concavity is measured by the proportionate rate of decrease of the slope, that is, the rate at which the slope decreases divided by the slope itself.’
    • ‘The flow-volume curves usually show a marked decrease in flow with decreasing lung volumes, typically evidenced by concavity of the expiratory portion of the flow curve.’
    • ‘The cervical centra are amphicoelous, but do not have the deep, bowl-shaped concavity as in Polycotylus.’
    • ‘In D. herschelensis, the concavity of the articular face of the vertebrae is not as deep as in P. latipinnis.’
    • ‘The photolabeling of the AdoMet-binding sites displayed homotropic negative cooperativity, characterized by a curvilinear Scatchard plot with upward concavity.’
    • ‘Scanning electron micrographs of the discs of the tube feet of Odontaster validus revealed varying degrees of concavity.’
    • ‘The concavity of the retina is another fact adduced in favour of the theory that our visual space is curved.’
    • ‘The concavity of the ventral interarea and shell outline varies considerably in this species.’
    • ‘Koilonychia is represented by transverse and longitudinal concavity of the nail, resulting in a ‘spoon-shaped’ nail.’
    • ‘‘Lower’ refers to the side of the test to which the neck curves; Figure 7 provides an example of how length, width, concavity and curvature are measured.’
    1. 1.1count noun A concave surface or thing.
      ‘the spaces are hollowed out to form concavities’
      • ‘Instead, a very shallow longitudinal concavity is present along the midventral surface.’
      • ‘The negative shapes that result - multiple concavities as baroquely complex as the engendering ovals are rudimentary - echo with revised color choices and adjusted contours.’
      • ‘Oskar had nothing but his fists with which to fill the two concavities.’
      • ‘The amygdaloid body is an ovoid gray nuclear mass, oriented transversely and with a slight posterior concavity.’
      • ‘There are usually no holes all the way through but lots of protuberances and concavities.’
      • ‘The shape of Taormina is a geometry of interlocking and contrapuntal curves and concavities with various centres and focal points.’
      • ‘Considerable differences between mitochondria can also be observed: some of them are regular, spherical or oval, whereas the surface of others is irregular, with smaller or bigger concavities.’
      • ‘A deep labial concavity is present between the two projections.’
      • ‘Flakes with concavities exhibiting steep, unifacial retouch were used to whittle or plane wood, and flakes displaying spurs were used to incise bone or antler.’
      • ‘The key observation here is that Hadrocodium has no trough or concavity.’
      • ‘The figures are in groups, occupying concavities in the walls of the cave.’
      • ‘These are broad concavities in the ambitus that could be considered precursors to the ambulacral notches of certain mellitids.’
      • ‘In time, they would develop concavities, and would require laborious grinding to put them back into shape.’
      • ‘From a hill-like rise at left to the pyramidal structure and round-lipped concavity on the right, the work does so by emphasizing this Arizona as a feminized site.’
      • ‘Ben Tre finishes the work by hand, often coating the concavities with color or gold leaf.’
      • ‘The labial surfaces of the plates are smooth, slightly convex both mesially and distally with a shallow concavity between.’
      • ‘The light from above distorts in the concavities formed at the points on which the strider rests.’
      • ‘Varied in circumference and width but uniform in texture, the smooth surfaces of the concavities contrast with the gritty exteriors, which, for the most part, are left untouched.’
      • ‘The upturned cardiac apex and the pulmonary artery concavity cause the appearance of a ‘boot shaped’ heart which is usually seen in the older child or the patient with pseudotruncus.’
      hole, pit, cavity, crater, trough, cave, cavern
      View synonyms

Pronunciation

concavity

/kɒnˈkavɪti/