chlorophyll
nounUK /ˈklɒrəfɪl/
US /ˈklɔːrəfɪl/
Chlorophyll is the green stuff in plants that helps them make food from sunlight.
The leaves are green because they are full of chlorophyll.
RELATED WORDS
OTHER MEANINGS
2. A green pigment found in algae and some bacteria that captures light energy.
Scientists studied the chlorophyll in the pond algae.
3. A substance used as a natural green food coloring or dietary supplement.
The health drink gets its green color from added chlorophyll.
4. The green coloring matter responsible for the color of most leaves and stems.
In autumn, chlorophyll breaks down and leaves turn yellow and red.