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atropine

/ˈætrəˌpiːn; -pɪn/
noun
1.
a poisonous alkaloid obtained from deadly nightshade, having an inhibitory action on the autonomic nervous system. It is used medicinally in pre-anaesthetic medication, to speed a slow heart rate, and as an emergency first-aid counter to exposure to chemical warfare nerve agents. Formula: C17H23NO3
Word Origin
C19: from New Latin atropa deadly nightshade, from Greek atropos unchangeable, inflexible; see Atropos
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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9
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