umbra

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

When the moon is within the umbra, the darkest part of Earth’s shadow, it looks red-orange, giving the eclipse the name “blood moon.”

From Los Angeles Times • Mar. 11, 2025

The lighter one, called the penumbra, will not have too much effect but the umbra, the inner and darker shadow, will darken the Moon.

From BBC • Sep. 17, 2024

When the moon passes partially into the umbra, it creates a partial eclipse, which looks as if there’s been a bite taken out of the moon.

From Slate • Apr. 5, 2024

A solar eclipse occurs when a new moon aligns perfectly between Earth and the sun and briefly casts a shadow on our planet, called an umbra.

From National Geographic • Oct. 2, 2023

All were in the umbra of the magnificent hemlock.

From "Frightful's Mountain" by Jean Craighead George