Search Result for "abrogator": 
Wordnet 3.0

NOUN (1)

1. an authority or official empowered to abolish or annul or repeal; 



The Collaborative International Dictionary of English v.0.48:

Abrogator \Ab"ro*ga`tor\, n.
   One who repeals by authority.
   [1913 Webster]


WordNet (r) 3.0 (2006):

abrogator
    n 1: an authority or official empowered to abolish or annul or
         repeal