1. plural of corona: the luminous envelope of plasma surrounding the sun or other star
Usage: astronomy
2. plural of corona: circular bands of light seen around celestial bodies
Usage: astronomy; meteorology
3. plural of corona: crown-like anatomical structures
Usage: anatomy; biology

Examples

• Solar coronas are visible during total eclipses.
• The telescope captured images of stellar coronas.
• Bright coronas appeared around the moon through the clouds.
• Scientists study the temperature of solar coronas.
• Multiple coronas were observed in the night sky.
• The coronas of different stars vary in brightness.