helleborin
/hɪˈlɛbərɪn/ /hɛlɪˈbɔːrɪn/(also helleborine) Chemistry
noun
A toxic alkaloid present in several species of hellebore (genus Helleborus), especially green hellebore, H. viridis, and certain other plants.
- Helleborin is a steroid glycoside of the saponin class. Formula: C28H36O6..
Origin
Mid 19th century (in an earlier sense). From scientific Latin Helleborus, genus name + -in.
- keep someone/thing off
- keep someone/thing on
- keep someone under
- keep someone up
- keep something back
- keep something dark
- keep something down
- keep something from
- keep something in
- keep something quiet (or keep quiet about something)
- keep something to oneself
- keep something under one's hat
- keep something up
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- keep tabs (or a tab) on
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- keep the bastards honest
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- keep (the) score
- keep the wolf from the door
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- keep to oneself