
<chemical> An androgenic steroid produced by the testis, adrenal cortex, and ovary. It occurs in nature as 4-delta-androstenedione and 5-delta-androstenedione. Androstenediones can be converted metabolically to testosterone and other androgens. ... Chemical name: Androst-4-ene-3,17-dione ... (12 Dec 1998) ...
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http://www.encyclo.co.uk/local/20973

(an″dro-stēn-di´ōn) (-stēn´de-ōn) an androgen, C19H30O2, less potent than testosterone, secreted by the testis, ovary, and adrenal cortex.
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http://www.encyclo.co.uk/local/21001

Type: Term Pronunciation: an′drō-stēn′dī-ōn Definitions: 1. Androstanedione with a double bond between C-4 and C-5; an androgenic steroid of weaker biologic potency than testosterone; secreted by the testis, ovary, and adrenal cortex.
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http://www.medilexicon.com/medicaldictionary.php?t=3586

Androstenedione: A pivotal adrenal steroid that is a precursor to testosterone and other androgens. Known popularly as andro. Has been used as a supplement to increase muscle strength. Taking andro raises testosterone levels above normal. Side effects include acne, male baldness, and a decrease in 'good' cholesterol, which may predispose to cardiov...
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http://www.medterms.com/script/main/art.asp?articlekey=31441
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