ryanodine

noun

ry·an·o·dine | \rīˈanəˌdēn, -də̇n\

plural -s

Definition of ryanodine

: a crystalline insecticidal alkaloid C₂₅H₃₅NO₉ that is toxic to mammals and is obtained from the root and stem of the ryania

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Rybinsk Reservoir

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The first known use of ryanodine was in 1948

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