penumbra
🇬🇧 UK/pi'nʌmbrә/🇺🇸 US
GREC2
Definitions
n.
A partially shaded region at the edge of a shadow, especially during an eclipse; any area of uncertainty between two states.
半影;(比喻)模糊地带,边缘区域
🧩 Root Breakdown
Root-derivedExample Sentences
- 1.
The penumbra of the shadow region gradually transitioned to darkness.
- 2.
Moral questions often exist in a penumbra between right and wrong.