Search Result for "acephalism": 
Wordnet 3.0

NOUN (1)

1. absence of the head (as in the development of some monsters);
[syn: acephalia, acephaly, acephalism]



WordNet (r) 3.0 (2006):

acephalism
    n 1: absence of the head (as in the development of some
         monsters) [syn: acephalia, acephaly, acephalism]