A red to purple azo dye used as a biological stain, and in some countries in cosmetics and as a food colouring.
Any of various herbs of the genus Amaranthus.
The characteristic purplish-red colour of the flowers or leaves of these plants.
The seed of these plants, used as a cereal.
The vivid red color of this dye.
A vivid red dye made from the bodies of cochineal insects.
A species of insect (Dactylopius coccus).
cochineal
Possessing a vivid red color, as produced from dying with cochineal.