| Noun | 1. | class Zygomycetes - class of fungi coextensive with subdivision Zygomycota class - (biology) a taxonomic group containing one or more orders subdivision Zygomycota, subdivision Zygomycotina, Zygomycota, Zygomycotina - division of fungi having sexually produced zygospores Mucorales, order Mucorales - an order of mostly saprophytic fungi Entomophthorales, order Entomophthorales - coextensive with the family Entomophthoraceae |