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Aetiology vs Undefined - What's the difference?

aetiology | undefined |

As a noun aetiology

is the establishment of a cause, origin, or reason for something.

As an adjective undefined is

lacking a definition or value.

aetiology

English

(wikipedia aetiology)

Alternative forms

* * etiology (American)

Noun

  • The establishment of a cause, origin, or reason for something.
  • * 1999 , Joyce Crick, translating Sigmund Freud, The Interpretation of Dreams , I.c:
    • I do not know where the idea first arose of enlisting internal (subjective) excitations of the sensory organs as well as external sensory stimuli; but it is in fact done in all the more recent accounts of the aetiology of dreams .
  • The study of causes or causation.
  • (medicine) The study or investigation of the causes of disease; a scientific explanation for the origin of a disease.

    • Usage notes

    * Not to be confused with etymology.

    Derived terms

    * etiologic * etiological * etiologically * etiologist

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined