Any of a group of green pigments that are found in the
chloroplasts of plants and in other photosynthetic
organisms such as cyanobacteria, especially:
A waxy blue-black microcrystalline green-plant pigment, C55H72MgN4O5, with a characteristic blue-green alcohol solution. Also called chlorophyll a.
A similar green-plant pigment, C55H70MgN4O6, having a
brilliant green alcohol solution. Also called chlorophyll b.