The characteristic purplish-red colour of the flowers or leaves of these plants.
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 seed of these plants, used as a cereal.
A deep, slightly bluish red.
Having a deep red colour.
Immodest.
To dye with crimson or deep red; to redden.
To become crimson or deep red; to blush.