Wordnet 3.0
NOUN (1)
1. 
 a paramilitary group of Protestants in Northern Ireland that tries to prevent any political settlement with the Irish Republic; 
 attacks interests of Catholic civilians in Northern Ireland; 
 responsible for arson and bombing and murder; 
[syn: Red Hand Defenders, RHD]
WordNet (r) 3.0 (2006):
RHD
    n 1: a paramilitary group of Protestants in Northern Ireland
         that tries to prevent any political settlement with the
         Irish Republic; attacks interests of Catholic civilians in
         Northern Ireland; responsible for arson and bombing and
         murder [syn: Red Hand Defenders, RHD]