| Noun | 1. | gentian violet - a green crystal (violet in water) used as a dye or stain or bactericide or fungicide or anthelmintic or burn treatment antibacterial, antibacterial drug, bactericide - any drug that destroys bacteria or inhibits their growth antifungal, antifungal agent, antimycotic, antimycotic agent, fungicide - any agent that destroys or prevents the growth of fungi anthelminthic, anthelmintic, helminthic, vermifuge - a medication capable of causing the evacuation of parasitic intestinal worms stain - (microscopy) a dye or other coloring material that is used in microscopy to make structures visible |