asarabacca

from The Century Dictionary.

• noun A common name of a European plant, a species of Asarum, A. Europœum. See Asarum. Also spelled asarabaca.

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

• noun (Bot.) An acrid herbaceous plant (Asarum Europæum), the leaves and roots of which are emetic and cathartic. It is principally used in cephalic snuffs.

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

• noun An acrid herbaceous plant whose leaves and roots are emetic and cathartic.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun thick creeping evergreen herb of western Europe