1 helenalin | Definition of helenalin
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helenalin

noun
hel·​e·​nalin | \ ˌheləˈnalə̇n, -nāl-\
plural -s

Definition of helenalin

: a poisonous bitter crystalline compound C15H18O4 that is the active principle of sneezeweed

History and Etymology for helenalin

helen- (from New Latin Helenium, genus name of the sneezeweed Helenium autumnale) + -al- (from New Latin autumnale, specific epithet of the sneezeweed Helenium autumnale) + -in

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