noun. any of a group of green pigments found in photosynthetic organisms; there are four naturally occurring forms.
- chlorophyll b
- chlorophyll c
- chlorophyll d
Example sentences of the word chlorophyl
1. Noun, singular or mass
All seaweeds, like true plants, contain chlorophyl for photosynthesis, but green algae, unlike the other two classes of seaweeds, contain no pigmentation to hide the characteristic green color of the compound.