- Rhizomastigida
- Rhi·zo·mas·tig·i·da (ri″zo-mas-tijґĭ-də) [rhizo- + Gr. mastix whip] in former systems of classification, an order of zooflagellates characterized by the presence of one to many flagella and pseudopodia occurring simultaneously or at different times in the trophozoite.
Medical dictionary. 2011.