atropine
/ˈætrəpin/
noun
- A poisonous substance found in plants like belladonna, used in medicine to relax muscles, dilate the pupils, and treat certain heart conditions.
- Atropine is sometimes given to slow down an abnormally fast heart rate.
- The doctor used atropine drops to dilate the patient's eyes for an exam.
- In large doses, atropine can be toxic and cause hallucinations.