mysophobia
my·sop·ho·bia
noun
1.
a morbid fear of dirt or contamination
Origin
From myso- + -phobia.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.