The most common and most likely answer to this crossword clue is the 8 letter word ETIOLOGY
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More clues leading to the result ETIOLOGY
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The cryptic/wordplay part
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What does ETIOLOGY mean?
ETIOLOGY noun- The establishment of a cause, origin, or reason for something.
- The study of causes or causation.
- The study or investigation of the causes of disease; a scientific explanation for the origin of a disease.