penumbral Definition
pertaining to the partially shaded outer region of a shadow, especially in an eclipse, where the light from the source is only partially blocked.
Using penumbral: Examples
Take a moment to familiarize yourself with how "penumbral" can be used in various situations through the following examples!
Example
The penumbral lunar eclipse was visible from North and South America.
Example
The penumbral shadow of the Earth is responsible for the phenomenon known as the zodiacal light.
Example
The penumbral region of the sunspot is cooler than the umbra.
penumbral Synonyms and Antonyms
Synonyms for penumbral
Summary: penumbral in Brief
'Penumbral' [pih-nuhm-bruhl] describes the partially shaded outer region of a shadow, particularly in an eclipse. It refers to a situation where the light from the source is only partially blocked. Examples include the penumbral lunar eclipse and the penumbral shadow of the Earth.