Definition of picrotoxin
: a poisonous bitter crystalline stimulant and convulsive substance C30H34O13 obtained from the berry of a southeast Asian vine (Anamirta cocculus) and used intravenously as an antidote for barbiturate poisoning
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Merriam-Webster unabridged
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Time Traveler for picrotoxin
The first known use of picrotoxin was in 1815
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