fear of the number 13 From Wikipedia, the free encyclopedia
Triskaidekaphobia[n 1] is the fear of the number thirteen. The number 13 has been linked to bad luck in the western superstition. Some buildings in the United States do not have a "13th floor."
The term was first used by Isador Coriat in Abnormal Psychology.[1]
There is also a fear of Friday the 13th. This fear is called paraskevidekatriaphobia[n 2] or friggatriskaidekaphobia.[n 3]
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