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Meaning of sweet potato

sweet' pota"to

Pronunciation: [key]
  1. a plant, Ipomoea batatas, of the morning glory family, grown for its sweet, edible, tuberous roots.
  2. the root itself, used as a vegetable.
  3. ocarina.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.