nova nova /ˈnoʊvə/

noun

1. A star that ejects some of its material in the form of a cloud and becomes more luminous in the process  ( nova )
   a star that ejects some of its material in the form of a cloud and becomes more luminous in the process
    The sudden brightness in the sky indicated the birth of a nova.
   The sudden brightness in the sky indicated the birth of a nova.