erythrosin
/ɪˈrɪθrəsɪn/
noun
- A red dye used in food, cosmetics, and medicine to color things pink or red.
- Some lipsticks contain erythrosin to give them a rosy tint.
- The candy gets its bright pink color from erythrosin.
- Erythrosin is sometimes used in dental tablets to show plaque on teeth.