(n.) An accumulation of urine in the pelvis of the kidney, occasioned by obstruction in the urinary passages.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). hydronephrosis. Retrieved September 23, 2026, from http://smartdefine.org/hydronephrosis/definitions/2018093 |
| Chicago | Webster's. 2011. "hydronephrosis" http://smartdefine.org/hydronephrosis/definitions/2018093 (accessed September 23, 2026). |
| Harvard | Webster's 2011, hydronephrosis, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/hydronephrosis/definitions/2018093>. |
| MLA | Webster's. "hydronephrosis" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/hydronephrosis/definitions/2018093> |