rhi·​zo·​pus ˈrī-zə-pəs How to pronounce rhizopus (audio)
: any of a genus (Rhizopus) of mold fungi including some economically valuable forms and some plant or animal pathogens (such as a bread mold)

Word History


New Latin, from rhiz- + Greek pous foot — more at foot

First Known Use

1854, in the meaning defined above

Time Traveler
The first known use of rhizopus was in 1854

Dictionary Entries Near rhizopus

Cite this Entry

“Rhizopus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rhizopus. Accessed 17 Jun. 2024.

Medical Definition


rhi·​zo·​pus ˈrī-zə-pəs How to pronounce rhizopus (audio)
capitalized : a genus of fungi of the family Mucoraceae that have columellate hemispherical aerial sporangia formed in fascicles anchored to the substrate and tufts of rhizoids or root hyphae connected by stolons and that include a common bread mold (R. nigricans) and several forms found in phycomycoses of some mammals including humans
: any fungus of the genus Rhizopus
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