Definition of "air potato" []

• A tropical Old World yam (Dioscorea bulbifera) having axillary potatolike tubers, some of which are edible after cooking. It is a weed in the tropics and Florida. Also called aerial yam, potato yam. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.