corona1
 
/
kəˈrəʊnə/
n.
 (pl. coronae  
/-niː/
)
     - Astronomy  the rarefied gaseous envelope of the sun or a star. ▸
(also corona discharge)
 Physics  the glow around a conductor at high potential. ▸a small circle of light seen round the sun or moon. 
- Anatomy  a crown or crown-like structure.
- Botany  the trumpet-shaped central part of a daffodil or narcissus flower.
- a circular chandelier in a church.
- Architecture  a part of a cornice having a broad vertical face.
Etymology
C16: from L., ‘wreath, crown’.
corona2
 
/
kəˈrəʊnə/
n.
 a long, straight-sided cigar.
Etymology
C19: from Sp. La Corona, lit. ‘the crown’, orig. a proprietary name.