vorticella
Concise Oxford English Dictionary © 2008 Oxford University Press:
vorticella /ˌvɔːtɪˈsɛlə/
▶noun Zoology a sedentary, single-celled aquatic animal with a contractile stalk and a bell-shaped body bearing a ring of cilia. [Genus Vorticella.]
– origin C18: mod. L., dimin. of L. vortex, vortic- ‘eddy’.
'vorticella' also found in these Oxford entries:
