Source : WordNet®

kingdom Protoctista
     n : 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 [syn: {Protoctista}]