Noun kingdom protoctista has 1 sense
  1. Protoctista, kingdom Protoctista - in most modern classifications, replacement for the Protista; includes: Protozoa; Euglenophyta; Chlorophyta; Cryptophyta; Heterokontophyta; Rhodophyta; unicellular protists and their descendant multicellular organisms: regarded as distinct from plants and animals
    --1 is a kind of kingdom
    --1 has members:
     protoctist order; protoctist; Protista, division Protista; protoctist family; protoctist genus; Protozoa, phylum Protozoa; Heterokontophyta, division Heterokontophyta; Chrysophyta, division Chrysophyta; Euglenophyta, division Euglenophyta; Chlorophyta, division Chlorophyta; Rhodophyta, division Rhodophyta; Cryptophyta, phylum Cryptophyta
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