noun In both senses also called achira, Queensland arrowroot.The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- A South American and West Indian plant (Canna edulis) having large red flowers and edible tubers.
- The tubers of this plant.