protist /ˈproʊtɪst/ noun4 •Any of the eukaryotic, usually unicellular organisms—including protozoans, slime molds and some algae—historically grouped into the kingdom Protista (or Protoctista), now distributed over several clades; any eukaryote that is not a plant, animal or fungus. •Any single-celled eukaryote, prokaryote or sponge . •Any single-celled eukaryote or prokaryote . •Any single-celled eukaryote . formsprotists
