DuckCorp

DuckCorp Dico

(RFC 2229 compliant dictionary server)
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Found one definition 

  1.                 From English-日本語 (にほんご) FreeDict+WikDict dictionary ver. 2022.11.18:
                

    
                
                  
    de- //diː// //də// <prefix>
脱-, 逆-, 非-
reversal, undoing or removing