A deficiency is generally a lack of something. It may also refer to:

  • A deficient number, in mathematics, a number n for which σ(n) < 2n
  • Angular deficiency, in geometry, the difference between a sum of angles and the corresponding sum in a Euclidean plane
  • Deficiency (medicine), including various types of malnutrition, as well as genetic diseases caused by deficiencies of endogenously produced proteins.
  • A deficiency in construction, an item, or condition that is considered sub-standard, or below minimum expectations
  • Genetic deletion, in genetics, is also called a deficiency
  • A deficiency judgment, in the law of real estate
  • A tax deficiency, an amount owed in taxes over and above what has been submitted in payment

Famous quotes containing the word deficiency:

    It is easier to discover a deficiency in individuals, in states, and in Providence, than to see their real import and value.
    Georg Wilhelm Friedrich Hegel (1770–1831)

    Free verse leaves out the meter and makes up
    For the deficiency by church intoning.
    Free verse, so called, is really cherished prose....
    Robert Frost (1874–1963)

    All rejection and negation indicates a deficiency in fertility: fundamentally, if only we were good plowland we would allow nothing to go unused, and in every thing, event, and person we would welcome manure, rain, or sunshine.
    Friedrich Nietzsche (1844–1900)