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epiandrosterone

[ĕp′ē-ăn-drŏs′tə-rōn′]
n.
  1. An inactive isomer of androsterone found normally in urine and in testicular and ovarian tissue.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.