VORTICELLAE

VORTICELLA

vorticella

(noun) any of various protozoa having a transparent goblet-shaped body with a retractile stalk

Source: WordNet® 3.1

Noun

vorticellae

plural of vorticella

Source: Wiktionary

VORTICELLA

Vor`ti*cel"la, n.; pl. E. Vorticellas (, L. Vorticellæ (. Etym: [NL., dim. fr. L. vortex. See Vortex.] (Zoöl.)

Definition: Any one of numerous species of ciliated Infusoria belonging to Vorticella and many other genera of the family Vorticellidæ. They have a more or less bell-shaped body with a circle of vibrating cilia around the oral disk. Most of the species have slender, contractile stems, either simple or branched.

Source: Webster’s Unabridged Dictionary 1913 Edition