yam

noun

1. edible tuber of any of several yams

   Less specific

   • tuber

   Part of

   • yam, yam plant

2. any of a number of tropical vines of the genus Dioscorea many having edible tuberous roots

   Synonyms

   • yam plant

   Less specific

   • vine

   More specific

   • white yam, water yam, Dioscorea alata, cinnamon vine, Chinese yam, Dioscorea batata, air potato, Dioscorea bulbifera, cush-cush, Dioscorea trifida

   Parts

   • yam

   Member of

   • Dioscorea, genus Dioscorea

3. sweet potato with deep orange flesh that remains moist when baked

   Less specific

   • sweet potato

4. edible tuberous root of various yam plants of the genus Dioscorea grown in the tropics world-wide for food

   Less specific

   • root vegetable