Related Content
- Daily Word Quiz: lunar
- Analogy of the Day: Today’s Analogy
- Spelling Bee: Today’s Spelling Bee
- Frequently Misspelled Words
- Frequently Mispronounced Words
- Easily Confused Words
- Writing & Language
coronal hole: Meaning and Definition of
coro'nal hole'
Pronunciation: [key]
— Astron. Astron.
- a part of the solar corona that appears dark on optical and x-ray images and is characterized by low temperature and low density.
