Definition
noun
A taxonomic group within Phylum Sarcomastigophora, and includes all protozoa that use flagella for movement.
Supplement
This group is further divided into two classes: Phytomastigophorea and Zoomastigophorea.
Word origin: mastīgophóros, whip-bearing.
Compare: Sarcodina.
See also: Sarcomastigophora.