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noun co·ro·na \kə-ˈrō-nə\

: a bright circle seen around the sun or the moon

Full Definition of CORONA

:  the projecting part of a classic cornice
a :  a usually colored circle often seen around and close to a luminous body (as the sun or moon) caused by diffraction produced by suspended droplets or occasionally particles of dust
b :  the tenuous outermost part of the atmosphere of a star (as the sun)
c :  a circle of light made by the apparent convergence of the streamers of the aurora borealis
d :  the upper portion of a bodily part (as a tooth or the skull)
e :  an appendage or series of united appendages on the inner side of the corolla in some flowers (as the daffodil, jonquil, or milkweed)
f :  a faint glow adjacent to the surface of an electrical conductor at high voltage
[from La Corona, a trademark] :  a long cigar having the sides straight to the end to be lit and being roundly blunt at the other end

Illustration of CORONA

Origin of CORONA

Latin, garland, crown, cornice — more at crown
First Known Use: 1548


geographical name Co·ro·na \kə-ˈrō-nə\

Definition of CORONA

city S California E of Los Angeles pop 152,374
Medical Dictionary


noun co·ro·na \kə-ˈrō-nə\

Medical Definition of CORONA

:  the upper portion of a bodily part (as a tooth or the skull)


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