hydronephrosis hy·dro·ne·phro·sis (hī'drō-nə-frō'sĭs)
n.
The dilation of the pelvis and calices of one or both kidneys because of the accumulation of urine resulting from obstruction to urine outflow. Also called uronephrosis.
| a stew of meat, vegetables, potatoes, etc. |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |