Trichomonas
| Trichomonas | |
|---|---|
| Two trophozoites of Trichomonas vaginalis stained with Giemsa | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Phylum: | Metamonada | 
| Subphylum: | Trichozoa | 
| Clade: | Parabasalia | 
| Order: | Trichomonadida | 
| Family: | Trichomonadidae | 
| Genus: | Trichomonas | 
| Species | |
| 
 | |
Trichomonas is a genus of anaerobic excavate parasites of vertebrates. It was first discovered by Alfred François Donné in 1836 when he found these parasites in the vagina of a patient suffering from vaginitis, an inflammation of the vagina. Donné named the genus from its morphological characteristics. The prefix tricho- originates from the Ancient Greek word θρίξ (thrix) meaning hair, describing Trichomonas’s flagella. The suffix -monas (μονάς – single unit), describes its similarity to unicellular organisms from the genus Monas.