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Concavity vs Koilonychia - What's the difference?

concavity | koilonychia |

As nouns the difference between concavity and koilonychia

is that concavity is (uncountable) the state of being concave while koilonychia is a deformity of the nails characterized by concavity of the outer surface.

concavity

English

Noun

  • (uncountable) The state of being concave
  • (countable) A concave structure or surface

    • Antonyms

    * convexity

    koilonychia

    English

    Noun

  • A deformity of the nails characterized by concavity of the outer surface

    • Synonyms

    *spoon nail