ryanodine

noun

ry·​an·​o·​dine

rīˈanəˌdēn,

-də̇n

plural -s

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

Word History

Etymology

irregular from New Latin Ryania (genus name of Ryania speciosa) + English -ine

First Known Use

1948, in the meaning defined above

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