DuckCorp Dico

Found one definition

1.                 From en.wiktionary.org:
                   
   
   
                   
                     
   
   ** English
   
   *** Etymology 1
   From [en].
   
   **** Noun
   [en-noun]
   
    1. One who, or that which, dulls.
    2. * [Philaster]
   ***** Derived terms
   
    - [en]
   *** Etymology 2
   From [en].
   
   **** Adjective
   [en]
   
    1. [dull]