kingdom Protoctista, 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

protozoan, protozoon - any of diverse minute acellular or unicellular organisms usually nonphotosynthetic

class Sarcodina, Sarcodina - characterized by the formation of pseudopods for locomotion and taking food: Actinopoda; Rhizopoda

Ciliata, Ciliophora, class Ciliata, class Ciliophora - class of protozoa having cilia or hairlike appendages on part or all of the surface during some part of the life cycle

class Flagellata, class Mastigophora, Flagellata, Mastigophora - protozoa having flagella

class Sporozoa, Sporozoa - strictly parasitic protozoans that are usually immobile; includes plasmodia and coccidia and piroplasms and malaria parasites

phylum - (biology) the major taxonomic group of animals and plants; contains classes