yam

noun

1. edible tuber of any of several yams

   noun.plant

   Source: WordNet 3.0

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

   noun.plant

   Synonyms yam plant

   Source: WordNet 3.0

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

   noun.food

   Source: WordNet 3.0

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

   noun.food

   Source: WordNet 3.0

5. A large, esculent, farinaceous tuber of various climbing plants of the genus <i>Dioscorea</i>; also, the plants themselves. Mostly natives of warm climates. The plants have netted-veined, petioled leaves, and pods with three broad wings. The commonest species is <i>D. sativa</i>, but several others are cultivated.

   noun

   Source: webster1913

6. Any one of several cultural varieties of the sweet potato.

   noun

   Source: webster1913