LUMBAR • FREE TRANSLATOR.ORG • Definition of Lumbar

... gentlemen. I discovered that the ball struck the second or third false rib, and fractured it about in the middle; it then passed through the liver and diaphragm, and, as far as we could ascertain without a minute examination, lodged in the first or second lumbar vertebra. The vertebra in which it was lodged was considerably splintered, so that the spiculae were distinctly perceptible to the finger. About a pint of clotted blood was found in the cavity of the belly, which had probably been effused ...

— Memoirs of Aaron Burr, Complete • Matthew L. Davis