Top Definition
the fear of mice and rats; causes to this may be socially induced conditioned responses or a startled responses (like a mouse popping out from under the stove)
Stacy screamed in the middle of the night because she thought she saw a mouse scurry across her bedroom floor. Musophobia caused her to stay awake in fear of the "dangerous" mammal from returning.
by Dingo18 December 10, 2013
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