Synonyms
Antonyms
1. hyoscyamine
noun. a poisonous crystalline alkaloid (isometric with atropine but more potent); used to treat excess motility of the gastrointestinal tract.
Synonyms
- poisonous substance
- alkaloid
- toxicant
Antonyms
- nontoxic
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Example sentences of the word hyoscyamine
1. Noun, singular or mass
The active chemicals hyoscyamine, scopolamine and atropine make this an extremely potent poison in even small doses.