Wordnet 3.0
NOUN (1)
1.
either side of the backbone between the hipbone and the ribs in humans as well as quadrupeds;
[syn: loin, lumbus]
WordNet (r) 3.0 (2006):
lumbus
n 1: either side of the backbone between the hipbone and the
ribs in humans as well as quadrupeds [syn: loin,
lumbus]