Definitions

1. noun

A subclass of ciliates, a type of protozoan characterized by the presence of a buccal cavity and a mouth surrounded by cilia

“The researcher studied the oxystomata species found in the lake’s ecosystem.”

2. noun

A class of ciliates in the subclass Hymenostomata

“The text described the oxystomata as a subgroup of ciliates in the larger class.”