[ ˌtrɪkə(ʊ)'mɒnad ]
■ noun Zoology & Medicine a parasitic protozoan of an order (Trichomonadida) with four to six flagella, infesting the urogenital or digestive system.
Derivatives
trichomonal adjective
Origin
C19: from mod. L. Trichomonadida , from Gk thrix , trikh- 'hair' + monas , monad- 'unit'.