n.
An abnormal fear of the number 13.
[Greek treiskaideka, thirteen (treis, three + kai, and + deka, ten; see deca-) + PHOBIA.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
