Penumbra

EN→ZH

What Does Penumbra Mean?

  • 半影
  • 半暗区
  • 朦胧状态

Penumbra Pronunciation

/pəˈnʌmbrə/

Penumbra Definition

noun

Definition

The partially shaded outer region of the shadow cast by an opaque object.

In ZH

由不透明物体投射的阴影的部分阴影外缘。

How to Use Penumbra in a Sentence

  • During a total solar eclipse, the moon casts a penumbra over the Earth.
  • The penumbra of the tree provided a cool spot to relax on a hot day.
  • In photography, the penumbra can affect the contrast of an image.
  • The penumbra of her influence extended far beyond the immediate community.
  • Astronomers have studied the penumbra of the sun for insights into solar activity.

Synonyms for Penumbra