noun Psychiatry.

a dread of dirt or filth.

Origin of mysophobia

1875–80; < New Latin, equivalent to myso- (< Greek mýs(os) filth) + -o- + -phobia -phobia
Related formsmy·so·pho·bic, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Word Origin and History for mysophobia

"dread of dirt or defilement," 1879, from Greek mysos "uncleanliness," from PIE *meus- "damp" (see moss) + -phobia.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for mysophobia




An abnormal fear of dirt or contamination.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.