|rī(ˌ)zōˌmastəˈjīnə noun plural
Usage: capitalized
Etymology: New Latin, from Rhizomastig-, Rhizomastix, genus of protozoa (from rhiz- + Greek mastig-, mastix whip, scourge) + -ina — more at mastig-
: an order of Zoomastigina that comprises protozoans which have both flagella and pseudopods and which chiefly are obscure soil or water organisms though a few are commensals and one ( Histomonas meleagris ) causes the serious blackhead of turkeys and other fowl