ocellus

• 指只有一个晶状体的单眼，如某些无脊椎动物的简单眼；也指眼状斑纹，即某些蝴蝶翅膀上由彩色圆点及其周围环圈构成的图案。

A noun referring to a simple eye with a single lens, or an eyelike marking, such as a colored spot surrounded by a ring, found on the wings of some butterflies.

1. C2formalscientific

   A small, simple eye found in some invertebrates, consisting of a single lens and capable of detecting light intensity and direction.

   单眼

   • Many insects have ocelli on the top of their heads to sense light.
   • The ocellus of a spider is less complex than its main eyes.
   • Scientists studied the ocellus to understand primitive vision.

   同义词eyespotsimple eye

2. Eyespot markingC2formalscientific

   A circular, eyelike marking on the wings of some insects, such as butterflies, often used to deter predators.

   眼斑

   • The peacock butterfly has a prominent ocellus on each wing.
   • The ocellus on the moth's wing resembles an eye to scare birds.
   • These ocelli are often brightly colored with a dark center.

   同义词eyespot