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nounany of the unicellular protiststype of:
Definition that contains protoctist
- kingdom the highest taxonomic group into which organisms are grouped; one of five biological categories: Monera or Protoctista or Plantae or Fungi or Animalia
- chondrus a genus of protoctist
- gymnomycota 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
- genus costia a genus of flagellate protoctist
- division gymnomycota 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
- lorica a hard protective sheath (as secreted by certain protoctists, for example)
- order ulvales an order of protoctist
- genus noctiluca a genus of protoctist
- genus spirogyra a genus of protoctist
- family nummulitidae a family of fossil protoctists