Sentence:  The following year Dennis Potter, by then dying of a cancer tumour he had named &#39;Rupert Murdoch&#39;, attacked [John] Birt as &#39;a croak-voiced <WSD>Dalek</WSD>&#39; dressed in an Armani suit. 
Meaning of the word marked with <WSD> tags:  One who is dogmatic, unfeeling and determined.