noun
- Dark brown or black pigments produced by melanocytes that give color to skin, hair, and eyes in humans and animals.
Usage: plural form; technical/scientific term; biochemistry
Examples
- Eumelanins are responsible for the dark coloration in human hair and skin.
- People with higher concentrations of eumelanins typically have darker complexions.
- The production of eumelanins is controlled by genetic factors and sun exposure.
- Eumelanins provide more protection against UV radiation than pheomelanins.
- The ratio of eumelanins to pheomelanins determines hair color variation.