mysophobia
noun
my·so·pho·bia ˌmī-sə-ˈfō-bē-ə 
: abnormal fear or hatred of uncleanliness or contamination (as with dirt or germs) : germophobia
Those with mysophobia and OCD may feel compelled to wash their hands frequently or clean sheets, desks and other surfaces at every chance.
Marissa Russo
Marissa RussoSeveral years ago, [Howie] Mandel went public with his mysophobia, an irrational fear of germs, which has controlled his life personally and publically. Justin Katz
Justin Katz mysophobe
ˈmī-sə-ˌfōb
noun or less commonly mysophobic
ˌmī-sə-ˈfō-bik
plural mysophobes also mysophobics
A self-confirmed mysophobe—one who fears contamination from germs—I am always armed with a little bottle of hand sanitizer and lots of prayer. Sarah Nothelfer
Sarah Nothelfer mysophobic adjective
You do not have to be mysophobic to want to slip on rubber gloves when you enter an airplane cabin. Hugo Marin
Hugo Marin 
Word History
Etymology
Greek mýsos (neuter s-stem) "pollution, defilement" (of uncertain origin) + -o- + -phobia
First Known Use
1879, in the meaning defined above
Medical Definition
mysophobia
noun
my·so·pho·bia
variants or misophobia
-ˈfō-bē-ə
: abnormal fear of or distaste for uncleanliness or contamination
- apostrophizes
- apostrophizing
- apostrophus
- Apotactici
- Apotactites
- apotelesm
- apotelesmatic
- apothecaries
- apothecaries' measure
- apothecaries' weight
- apothecary
- apothecary jar
- Apothecary rose
- apothecary's rose
- apotheces
- apothecia
- apothecial
- apothecium
- apothegm
- apothegmatic
- apothegmatise
- apothegmatised
- apothegmatises
- apothegmatising
- apothegmatists