nosology

/N OW1 Z AA1 L AH0 JH IY0/
noun
  1. 1

    A treatise or written classification of diseases.

  2. 2

    The study of diseases; the systematic investigation or classification of disease.

  3. 3

    The characteristics or scientific understanding of a specific disease.

    โ€œ2003: Thomas Arnold [...] constructed a nosology of insanity explicitly on the basis of the Lockean philosophy of mind โ€” Roy Porter, Flesh in the Age of Reason (Penguin 2004, p. 312)โ€

Source: https://en.wiktionary.org/wiki/nosology