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mu·cor | \ ˈmyü-ˌkȯ(ə)r 
\
\Medical Definition of mucor
1 capitalized : a genus (the type of the family Mucoraceae) of molds that are distinguished from molds of the genus Rhizopus by having round usually cylindrical or pear-shaped sporangia not clustered and not limited in location to the points where rhizoids develop and that include several (as M. corymbifer) causing infections in humans and animals
2 : any mold of the genus Mucor
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