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A tropical yam (Dioscorea bulbifera) of Africa and Asia, having axillary potatolike bulbils and underground tubers, both of which are edible in some varieties. It is a destructive weed in the southeast United States. Also called potato yam.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||air potato - yam of tropical Africa and Asia cultivated for it large tubers|
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