stigma sterol


[stig-mas-tuh-rawl, -rohl]
noun Biochemistry.
a crystalline, water-insoluble steroid, C 2 9 H 4 8 O, present in soybeans or calabar beans, used chiefly as a raw material in the manufacture of progesterone.

1920–25; < Neo-Latin (Physo)stigma (see physostigmine) + sterol Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
stigmasterol (stɪɡˈmæstəˌrɒl)
biochem a sterol obtained from Calabar beans and soya beans and used in the manufacture of progesterone. Formula: C29H47OH
[C20: from New Latin (physo)stigma genus name of the Calabar bean + sterol; see physostigmine]

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