1. A brown or golden-yellow pigment found in brown algae and diatoms that absorbs light energy for photosynthesis.
Usage: technical; biology

Examples

• Fucoxanthin gives brown algae their characteristic dark color.
• The pigment fucoxanthin helps kelp absorb blue and green wavelengths of light.
• Scientists study fucoxanthin for its potential health benefits in marine organisms.
• Diatoms contain fucoxanthin as part of their photosynthetic apparatus.
• The golden hue of certain seaweeds comes from high concentrations of fucoxanthin.