-ˌmastəˈjīnə noun plural
Usage: capitalized
Etymology: New Latin, from phyt- + mastig- + -ina
: a subclass of Mastigophora comprising the plantlike flagellates that are often regarded as unicellular algae, have chromatophores which contain chlorophyll, usually secrete a covering of cellulose, and have a pigmented eyespot — compare zoomastigina