chloroplast
nounUK /ˈklɒrəplɑːst/
US /ˈklɔːrəplæst/
A tiny green part inside a plant cell that makes food from sunlight.
The chloroplasts in the leaf use sunlight to make sugar for the plant.
RELATED WORDS
OTHER MEANINGS
2. A specialized organelle in algae that carries out photosynthesis.
Algal chloroplasts can vary in shape from cup-like to spiral.
3. A structure in some plant cells that stores starch as well as making food.
The chloroplast also stores starch grains made during the day.
4. A green body in a cell that contains chlorophyll and gives plants their color.
Under the microscope, the chloroplasts appeared as small green discs.