hydropyonephrosis hy·dro·py·o·ne·phro·sis (hī'drō-pī'ō-nə-frō'sĭs)
n.
The accumulation of purulent urine in the pelvis and calices of the kidneys, usually the result of bacterial infection following obstruction of the ureter.
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| a scrap or morsel of food left at a meal. |
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