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|Noun||1.||chlorophyl - any of a group of green pigments found in photosynthetic organisms; there are four naturally occurring forms|
chlorophyll a - a blue-black plant pigment having a blue-green alcohol solution; found in all higher plants
chlorophyll b - a dark-green plant pigment having a brilliant green alcohol solution; generally characteristic of higher plants
chlorophyll d - the chlorophyll found (together with chlorophyll a) in red algae
pigment - dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)