Medical Dictionary

Lithospermum

noun Lith·o·sper·mum \ˌlith-ə-ˈspər-məm\

Medical Definition of LITHOSPERMUM

:  a genus of herbs of the borage family (Boraginaceae) having polished white stony nutlets and including one (L. ruderale) used by some American Indians to make a tea held to prevent conception

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