a small funnel-shaped cavity of the kidney into which urine is discharged before passing into the ureter
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
A hollow flattened funnel-shaped expansion of the upper end of the ureter into which urine is discharged before entering the ureter.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.