ˌvȯrd.əˈselə noun
Etymology: New Latin, from Latin vortic-, vortex + New Latin -ella
1. capitalized : a genus (the type of the family Vorticellidae) of stalked bell-shaped peritrichous ciliates with a marginal row of strong cilia about the oral disk
2. plural vorticel·lae -eˌlē or vorticellas : any ciliate of the genus Vorticella or of the family Vorticellidae