Category: HealthPart of speech: nounDifficulty: Advanced

etiology

/ˌiː.ti.ˈɒl.ə.dʒi/Roman

English meaning: Etiology

English Definition

(English)

Etiology (Greek: aitia = cause + logos = study) identifies the root cause of a disease — whether infectious agent, genetic mutation, environmental toxin, nutritional deficiency, or psychosocial factor. Understanding etiology guides treatment (antibiotics for bacterial infections, insulin for Type 1 diabetes) and prevention (vaccination, smoking cessation). Many diseases have multifactorial etiologies.

English Definition

The study of the causes or origins of diseases or conditions. In medicine, establishing etiology — the underlying cause — is essential for choosing the correct treatment. In philosophy, etiology refers to the study of causation more broadly.

Example

The etiology of tuberculosis — Mycobacterium tuberculosis — was established by Robert Koch in 1882, enabling targeted treatment and public health measures.

In English: Koch's identification of the TB bacterium established its etiology and transformed treatment strategies.

Synonyms

  • causation
  • disease cause
  • aetiology

Antonyms / Opposites

  • symptomatology
  • prognosis

Literary Heritage

Considering how common illness is, how tremendous the spiritual change that it brings, how astonishing, when the lights of health go down, the undiscovered countries that are then disclosed.

Considering how common illness is, how tremendous the spiritual change that it brings, how astonishing, when the lights of health go down, the undiscovered countries that are then disclosed.

Virginia Woolf · Novelist / Essayist · 20th century

On Being Ill

On Being Ill, essay, opening paragraph, 1930

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