Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun hyoscyamine

1 sense of hyoscyamine

Sense 1
hyoscyamine -- (a poisonous crystalline alkaloid (isometric with atropine but more potent); used to treat excess motility of the gastrointestinal tract)
       => alkaloid -- (natural bases containing nitrogen found in plants)
       => poison, toxicant, poisonous substance -- (any substance that causes injury or illness or death of a living organism)