Definition

1. Noun:
   • A tropical vine species: Dioscorea alata is a species of yam, a climbing vine cultivated for its large, edible tuber.
   • A cultivated food crop: It refers specifically to the plant grown in tropical and subtropical regions, including Australasia and Polynesia, for its starchy root.

Examples of Usage

• Noun:
  • The farmer cultivated Dioscorea alata for its reliable yield.
  • Dioscorea alata, commonly known as the water yam, is an important food source in many Pacific islands.

Advanced Usage

• In botanical or agricultural contexts: The term is used formally to specify this particular species within the genus .
  • The study compared the nutritional content of Dioscorea alata with other tuber crops.

Variants and Related Words

• Water yam: A common name for .
• Purple yam / Ube: While often associated with , "ube" can refer to specific purple-fleshed cultivars. Note: This is a related common name for a variant, not a direct synonym for the species name.
• Greater yam: Another common name for this species.
• Dioscorea: The genus to which this plant belongs.

Synonyms

• Water yam: The most frequent common name.
• Greater yam: Another accepted common name.
• Winged yam: A name referring to the characteristic shape of its stem.

Related Phrases / Collocations

• Cultivar of Dioscorea alata: Refers to a cultivated variety of this species.
• Tuber of Dioscorea alata: Specifies the edible part of the plant.

Related Idioms

• . As a precise botanical name, is not used in idiomatic expressions.

Noun

1. grown in Australasia and Polynesia for its large root with fine edible white flesh