DuckCorp Dico

Found one definition

1.                 From en.wiktionary.org:
                   
   
   
                   
                     
   [flare-up]
   
   ** English
   
   *** Noun
   [en-noun]
   
    1. [en] .
    2. * {{ quote-text | en | year=1931 | author=w:H. P. Lovecraft | title=w:The Whisperer in Darkness | chapter=1
   |passage=All the legendry, of course, white and Indian alike, died down during
   the nineteenth century, except for occasional atavistical FLAREUPS.}}