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 (trĭs′kī-dĕk′ə-fō′bē-ə, trĭs′kĭ-)
An abnormal fear of the number 13.

[Greek treiskaideka, thirteen (treis, three; see trei- in Indo-European roots + kai, and + deka, ten; see deca-) + -phobia.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Psychology) an abnormal fear of the number thirteen
[C20: from Greek triskaideka thirteen + -phobia]
ˌtriskaiˌdekaˈphobic adj, n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌtrɪs kaɪˌdɛk əˈfoʊ bi ə, ˌtrɪs kə-)

fear or a phobia concerning the number 13.
[1910–15; < Greek triskaídeka thirteen + -phobia]
tris`kai•dek`a•pho′bic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.triskaidekaphobia - a morbid fear of the number 13triskaidekaphobia - a morbid fear of the number 13  
simple phobia - any phobia (other than agoraphobia) associated with relatively simple well-defined stimuli
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
But I guess the bravery award needs to go to the ones who overcame triskaidekaphobia, and pooh- poohed the common fear of the number 13 and hence tied the knot, not on Valentine's Day but a day earlier.
If you're looking for somewhere to live, and are untroubled by Triskaidekaphobia, then getting a house at number 13 can save you serious money.
Being afraid of the number&nbsp;13 is called triskaidekaphobia.
Triskaidekaphobia is the irrational fear of which number?
He had various obsessions developing a real phobia for number 13 and Friday (he suffered from "triskaidekaphobia," and "paraskevidekatriaphobia," from the Greek Paraskevi ("Friday") and dekatreis ("thirteen").
Technically a fear of the number 13 is called 'triskaidekaphobia.'.
There is something vaguely poignant about seeing Schoenberg's well-documented triskaidekaphobia on display in this way.
The word is an amalgamation of "Frigg" - the Norse goddess who Friday is named after - and "triskaidekaphobia" meaning the fear of "13".
Cowell's condition is medically known as "triskaidekaphobia", which stems from the Christian beliefs that Judas Iscariot, the disciple who betrayed Jesus, was the 13th to sit at the Last Supper table in the Bible.
I try to be upbeat and positive, but I think I am developing triskaidekaphobia. The tsunami of bad that has overwhelmed the good this year has led me to conclude there may be something to all the superstitions about the number 13.
In addition to the fear of Friday 13th, 61% of Geordies say they suffer from Triskaidekaphobia - the fear of the number 13, in the belief that the number brings them bad luck.