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Definition of Acrophobia

Acrophobia: An abnormally excessive and persistent fear of heights. Sufferers experience severe anxiety even though they usually realize that, as a rule, heights pose no real threat to them.

Derived from the Greek "acron", height + "phobos", fear.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=9944
Last Editorial Review: 6/14/2012

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