Search Result for "encephalography": 
Wordnet 3.0

NOUN (1)

1. roentgenography of the brain after spinal fluid has been replaced by a gas (usually oxygen); produces an encephalogram; 



WordNet (r) 3.0 (2006):

encephalography
    n 1: roentgenography of the brain after spinal fluid has been
         replaced by a gas (usually oxygen); produces an
         encephalogram