In many algae, accessory pigments expand the range of light wavelengths that can be used for photosynthesis.

The conservator warned that many nineteenth-century watercolors contained fugitive pigments that would fade if exposed to sunlight.

The conservator carefully tested the lake pigments to determine their lightfastness before restoring the painting.

The conservator carefully analyzed a flake of paint to confirm it contained a lake pigment.

The curator explained that the nineteenth-century portrait contained a fugitive pigment that would darken and fade if displayed in direct sunlight.

In liver disease, increased bile pigments in the bloodstream can cause jaundice.

During dissection, the researcher carefully examined the iris pigmented epithelium to assess melanin distribution.

Researchers examined the iris pigmented epithelia under high-resolution microscopy to study pigment distribution.

The butterfly's wings were pigmentationally altered, showing a subtle shift toward blue after exposure to sunlight.