corona
       n 1: the outermost region of the sun's atmosphere; visible as a
            white halo during a solar eclipse [syn: aureole]
       2: (botany) the trumpet shaped or cup shaped outgrowth of the
          corolla of a daffodil or narcissus flower
       3: an electrical discharge accompanied by ionization of
          surrounding atmosphere [syn: corona discharge, corposant,
           St. Elmo's fire, Saint Elmo's fire, Saint Elmo's
          light, Saint Ulmo's fire, Saint Ulmo's light, electric
          glow]
       4: one or more circles of light seen around a luminous object
       5: (anatomy) any structure that resembles a crown in shape
       6: a long cigar with blunt ends
       [also: coronae (pl)]