The rarefied gaseous envelope of the sun and other stars, visible during a total solar eclipse. During the solar eclipse, the corona of the sun was visible, creating a stunning halo effect.
A part of the body resembling or likened to a crown. The corona of the tooth is the part that is covered by enamel.
A circular chandelier in a church. The grand corona hanging in the cathedral was adorned with numerous candles.
A crown or crown-like structure. The statue was topped with a corona made of gold, symbolizing royalty.
A faint glow enveloping a high-voltage conductor, caused by ionization of the surrounding air. The electrical engineer explained the corona effect observed around the power lines.
An appendage between the petals and the stamens of certain flowers, typically forming a crown-like ring. The trumpet of a daffodil is formed by its conspicuous yellow corona.
A colored circle or halo seen around a luminous body, especially the sun or moon, caused by diffraction of light by water droplets. A pale blue corona surrounded the full moon as thin clouds drifted past.
(informal) Coronavirus disease 2019 or the virus that causes it; COVID-19. Many events were cancelled because of corona.