Tetrahymena
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
relative of the paramecium; often used in genetics research
Word Usage
"A soluble factor that influences mating in tetrahymena called factor active in conjugation (FAC) has been identified."
Hypernym
Words that are more generic or abstract
ciliate
ciliated protozoan
ciliophoran