- any of a wide variety of common fungi constituting the phylum Zygomycota of the kingdom Fungi (or the class Zygomycetes of the kingdom Plantae), in which sexual reproduction is by the formation of zygospores.
- any filamentous fungus of the phylum Zygomycota (or Zygomycetes), which reproduces sexually by means of zygospores, including the bread mould
