Paramecium
WordNet
noun
(1) Any member of the genus Paramecium
WiktionaryText
Noun
- A type of oval-shaped protozoan organism.
- *1997: Edgar noticed that Clyde was wearing a necktie with a driblet deign. The little figures made him think of paramecia, sinister organisms with gullets and feeding grooves. — Don DeLillo, Underworld