[lum.bar] adj [NL lumbaris, fr. L lumbus loin--more at loin] (ca. 1656): of, relating to, or constituting the loins or the vertebrae between the thoracic vertebrae and sacrum "~ region"
LUMBAR
Meaning of LUMBAR in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012