[ -kē′tō-stîr′oid′, -stĕr′- ]
A steroid having a ketone group attached to its 17th carbon atom, especially any of those produced by the adrenal cortex and gonads and occurring normally in the urine.17-oxosteroid
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.