retinula
/rɪˈtɪnjələ/
noun
- A small group of light-sensitive cells in the compound eye of an arthropod, such as an insect or crustacean.
- Scientists studied the retinula to understand how bees perceive colors.
- The retinula converts light into electrical signals that the insect's brain can process.
- Each ommatidium in a fly's eye contains a retinula of eight photoreceptor cells.