pseudocast

[sōōdə-kăst′]
n.
  1. An elongated ribbonlike mucous thread occurring in the urine, having poorly defined edges and pointed or split ends and resembling a urinary cast.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.