Amoeboflagellate

An amoeboflagellate is any eukaryotic organism capable of behaving as an amoeba and as a flagellate at some point during their life cycle. Amoeboflagellates present pseudopodia and at least one flagellum, often in separate life stages (as in Naegleria fowleri, a human pathogen) or in the same stage simultaneously (as in Cercomonas).