a fringe region of partial shadow around an umbra
Used in a Sentence
penumbra
How to use penumbra in a sentence. Example sentences and definitions for penumbra.
Editorial note
The penumbra can be visualised using quite clever MRI [2].
Examples3
Definitions1
Parts of speech1
Quick take
a fringe region of partial shadow around an umbra
Meaning at a glance
The clearest senses and uses of penumbra gathered in one view.
Definitions
Core meanings and parts of speech for penumbra.
noun
a fringe region of partial shadow around an umbra
Example sentences
The penumbra can be visualised using quite clever MRI [2].
This penumbra of tissue dies off over time, and can be saved if the blood supply is reconstituted.
The reason for this is that when part of the brain becomes ischaemic, a central core dies instantly but around this there is a halo or penumbra that is not dead but at risk.
Frequently asked questions
Short answers drawn from the clearest meanings and examples for this word.
How do you use penumbra in a sentence?
The penumbra can be visualised using quite clever MRI [2].
What does penumbra mean?
a fringe region of partial shadow around an umbra
What part of speech is penumbra?
penumbra is commonly used as noun.