Search Result for "double blind":
Wordnet 3.0

NOUN (1)

1. a test procedure in which the identity of those receiving the intervention is concealed from both the administrators and the subjects until after the test is completed; designed to reduce or eliminate bias in the results; 



WordNet (r) 3.0 (2006):

double blind
    n 1: a test procedure in which the identity of those receiving
         the intervention is concealed from both the administrators
         and the subjects until after the test is completed;
         designed to reduce or eliminate bias in the results