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Addis count

[ăd′ĭs]
n.
  1. The number of red blood cells, white blood cells, and casts in a twelve-hour urine specimen, used to follow the progress of kidney disease.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.