Search Result for "spondylolisthesis": 
Wordnet 3.0

NOUN (1)

1. a forward dislocation of one vertebra over the one beneath it producing pressure on spinal nerves;


WordNet (r) 3.0 (2006):

spondylolisthesis n 1: a forward dislocation of one vertebra over the one beneath it producing pressure on spinal nerves