Synonyms for Saint elmo's fire:

n.

Saint Elmo's fire (noun)
St. Elmo's Fire, Saint Ulmo's Light, Saint Elmo's Light, Saint Ulmo's Fire, electric glow, corona discharge, corposant, corona.

Other synonyms:

Saint Elmo's light
Saint Elmo's Light.
Saint Ulmo's fire
Saint Ulmo's Fire.
Saint Ulmo's light
Saint Ulmo's Light.
St. Elmo's fire
St. Elmo's Fire.