| gonane | The hypothetical parent hydrocarbon molecule of gonadal steroid hormones, such as estrane or androstane, which was conceived to achieve forms of systematic nomenclature. (05 Mar 2000) |
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| gonanes | Steroids containing the fundamental tetracyclic unit with no methyl groups at c-10 and c-13 and with no side chain at c-17. The concept includes both saturated and unsaturated derivatives. (12 Dec 1998) |