compound eye
Zoological term for an eye composed of many individual visual units (ommatidia), as in insects and crustaceans. Contrasts with 単眼 (simple eye).
See also: 単眼
A dragonfly's compound eye is made up of thousands of ommatidia.
The compound eyes of insects can quickly detect movement.
複 (compound, multiple) + 眼 (eye). A straightforward kanji compound describing the structure of compound eyes.