tenulin

noun
ten·u·lin | \ˈtenyələ̇n\
plural -s

Definition of tenulin 

: a crystalline sesquiterpenoid lactone C17H22O5 obtained from plants of the genus Helenium (as H. tenuifolium)

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History and Etymology for tenulin

New Latin tenuifolium (specific epithet of Helenium tenuifolium) (from Latin tenuis thin + folium leaf) + -lin (as in helenalin)

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