ouabain
/wɑˈbeɪɪn/
noun
- A poisonous substance obtained from certain African plants, used in very small amounts as a heart medicine.
- Researchers studied the effects of ouabain on heart muscle cells in the laboratory.
- The doctor prescribed ouabain to help regulate the patient's heartbeat.
- Ouabain is a powerful cardiac glycoside that must be used with extreme caution.