artemisinin(redirected from Artemesinin)
Also found in: Medical.
1. A compound, C15H22O5, that is obtained from a species of artemisia (Artemisia annua) and has antimalarial activity.
2. Any of several semisynthetic derivatives of this compound that are used to treat malaria, usually in combination with other drugs.
a drug obtained from the plant genus Artemisia and used to treat malaria(as modifier)