mudarin

from The Century Dictionary.

• noun An odorless, bitter mixture of compounds contained in the bark of madarroot, Calotropis mudari. It is used in India as a medicine and is also called madarin.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Chem.) A brown, amorphous, bitter substance having a strong emetic action, extracted from the root of the mudar.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun organic chemistry A brown amorphous bitter substance having a strong emetic action, extracted from the root of the mudar.