lumbosacral plexus
- n a nerve plexus formed by the ventral divisions of the coccygeal and sacral and lumbar nerves; supplies the lower limbs and perineum and coccygeal area
lumbus
- n either side of the backbone between the hipbone and the ribs in humans as well as quadrupeds
lumen
- n a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions
- n a cavity or passage in a tubular organ
the lumen of the intestine