Fear of open high places.
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Acousticophobia
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Aeronausiphobia
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Agliophobia
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Aeroacrophobia-
D
Correct answer
Explanation
Aeroacrophobia comes from Greek roots: 'aero' (air) and 'acra' (heights/summits), specifically meaning fear of open high places. Acousticophobia is fear of noise, aeronausiphobia relates to vomiting, and agliophobia is fear of pain.