| Noun | 1. | Myxomycetes - the class of true slime molds; essentially equivalent to the division Myxomycota class - (biology) a taxonomic group containing one or more orders division Gymnomycota, division Myxomycota, Gymnomycota, Myxomycota - slime molds; organisms having a noncellular and multinucleate creeping vegetative phase and a propagative spore-producing stage: comprises Myxomycetes and Acrasiomycetes; in some classifications placed in the kingdom Protoctista acellular slime mold, myxomycete, plasmodial slime mold, true slime mold - a slime mold of the class Myxomycetes |