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