corona

A corona is a glowing circle of light around an object. You can see the Sun's corona during a total solar eclipse.

The word corona refers in a general sense to a circle or ring of light. In scientific terms, a corona is the very outer part of the Sun's gaseous atmosphere. If you want to see the corona of the Sun, you'll have to use a special viewing device during the next solar eclipse (don't look directly at the Sun — it's not safe!). In the 17th century, corona referred to a circular crown, from the Latin word for "crown or garland."

Primary Meanings of corona

1.
n
one or more circles of light seen around a luminous object
2.
n
the outermost region of the sun's atmosphere; visible as a white halo during a solar eclipse
3.
n
an electrical discharge accompanied by ionization of surrounding atmosphere
4.
n
(anatomy) any structure that resembles a crown in shape
5.
n
(botany) the trumpet-shaped or cup-shaped outgrowth of the corolla of a daffodil or narcissus flower
6.
n
a long cigar with blunt ends
Full Definitions of corona
1

n one or more circles of light seen around a luminous object

Type of:
light, visible light, visible radiation
(physics) electromagnetic radiation that can produce a visual sensation
2

n the outermost region of the sun's atmosphere; visible as a white halo during a solar eclipse

Synonyms:
aureole
Type of:
glow, glowing, radiance
the amount of electromagnetic radiation leaving or arriving at a point on a surface
3

n an electrical discharge accompanied by ionization of surrounding atmosphere

4

n (anatomy) any structure that resembles a crown in shape

Type of:
anatomical structure, bodily structure, body structure, complex body part, structure
a particular complex anatomical part of a living thing
5

n (botany) the trumpet-shaped or cup-shaped outgrowth of the corolla of a daffodil or narcissus flower

Type of:
plant part, plant structure
any part of a plant or fungus
6

n a long cigar with blunt ends

Type of:
cigar
a roll of tobacco for smoking

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