marrubiinn.
/maˈruːbɪɪn/, U.S. /məˈrubiᵻn/ Chemistry.
A diterpenoid lactone, C20H28O4, that occurs in the plant white horehound, Marrubium vulgare.
ΚΠ
1871 H. Watts tr. L. Gmelin Hand-bk. Chem. XVIII. 234 Marrubiin. The bitter principle of Marubium vulgare.
1883 Dispensatory U.S.A. (ed. 15) 926 A bitter principle called marrubiin.
1939 Nature 8 Apr. 604/2 It is concluded that marrubiin is a hydroxyditerpene lactone of the manoyl oxide type.
1946 Thorpe's Dict. Appl. Chem. (ed. 4) 517/1 The only constituent [of Marrubium vulgare] which has been examined is the crystalline, bitter, neutral marrubiin.
1992 Jrnl. Chromatogr. 605 125/2 The injection volume was 10μl and UV detection was at 210 nm for parthenolide and artemisinin and 225 nm for marrubiin.
This entry has been updated (OED Third Edition, December 2000; most recently modified version published online March 2022).
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n.1871- to cast ambsace
- to cast ames-ace
- to cast amesace
- to cast an anchor to windward
- to cast an essoin
- to cast an eye, glance, look
- to cast anchor
- to cast any one in the teeth
- to cast aside
- to cast aside one's ear
- to cast aspersions upon
- to cast at heel
- to cast at one's heels
- to cast away
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- to cast cantraips
- to cast cavel
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- to cast damper