Answer:
idiopathic
Explanation:
If medicine describe is a disease as having an etiology that is unknown, the disease is said to be idiopathic.
What is idiopathic?
Idiopathic (of diseases) arising from an unknown cause; "idiopathic epilepsy".
Therefore, the final answer is idiopathic.
I hope this helps, let me know if you have any questions.
Learn more about idiopathic:
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