Search Result for "paternity test":
Wordnet 3.0

NOUN (1)

1. a test based on blood groups to determine whether a particular man could be the biological father of a particular child; negative results prove he was not the father but positive results show only that he could be; 



WordNet (r) 3.0 (2006):

paternity test
    n 1: a test based on blood groups to determine whether a
         particular man could be the biological father of a
         particular child; negative results prove he was not the
         father but positive results show only that he could be