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etiology

C2
noun

Pronunciation

UK

  • /ˌiːtɪˈɒlədʒi/

US

  • /ˌiˌtiˈɑlədʒi/
  • /ˌitiˈɑlədʒi/

Description

Ever wonder why something happens? That's where etiology comes in. It usually means the cause or origin of something, especially a disease, but it can also describe the cause of other things, like a historical event or a social problem. When someone talks about the etiology of a disease, they mean what brought it about.

The word comes from the Greek aitia, meaning "cause." You'll hear it most often in medical or scientific contexts: doctors discuss the etiology of a disease, and historians may examine the etiology of a revolution. It's not an everyday word, but it is useful when you want to talk about the deeper cause or starting point of something.

Examples

  1. 1

    Medical cause

    Doctors still do not fully understand the etiology of the disease.

  2. 2

    Research factors

    The study looked at the etiology of childhood asthma, including both genetic and environmental factors.

  3. 3

    Unknown cause

    The patient was diagnosed with liver inflammation of unknown etiology.

    • Phrase

      of unknown etiology

      with no known cause yet

Forms and spellings

2 forms open this card.

Main spelling

  • etiologynoun

Forms

  • etiologiespluralnoun