Lumbosacral
Pronunciation : Lum`bo*sa"cral
Part of Speech : n.
Etymology : [L. lumbus loin + E. sacral.] (Anat.)
Definition : Defn: Of or pertaining to the loins and sacrum; as, the lumbosacral nerve, a branch of one of the lumber nerves which passes over the sacrum.
Source : Webster's Unabridged Dictionary, 1913