tris·kai·dek·a·pho·bi·a 
(trĭs′kī-dĕk′ə-fōbē-ə, trĭs′kĭ-)
(trĭs′kī-dĕk′ə-fōbē-ə, trĭs′kĭ-)n.
An abnormal fear of the number 13.
[Greek treiskaideka, thirteen (treis, three; see trei- in the Appendix of Indo-European roots + kai, and + deka, ten; see DECA-) + -PHOBIA.]
- transport
- transportability
- transportable
- transportation
- transporter
- transportive
- transposable
- transpose
- transposition
- transpositional
- transposon
- transracial
- transsexual
- transship
- transshipment
- transthoracic
- transthoracically
- transubstantiate
- transubstantiation
- transubstantiationalist
- transudate
- transudation
- transudatory
- transude
- transuranic