Dioscorea sativa
Yam Yam (y[a^]m), n. [Pg. inhame, probably from some native name.] 1. (Bot.) A large, esculent, farinaceous tuber of various climbing plants of the genus {Dioscorea}; 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 {Dioscorea sativa}, but several others are cultivated. [1913 Webster]

2. (Bot.) Any one of several cultural varieties of the sweet potato. [U. S.] [Webster 1913 Suppl.]

{Chinese yam}, a plant ({Dioscorea Batatas}) with a long and slender tuber, hardier than most of the other species.

{Wild yam}. (a) A common plant ({Dioscorea villosa}) of the Eastern United States, having a hard and knotty rootstock. (b) An orchidaceous plant ({Gastrodia sesamoides}) of Australia and Tasmania. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Dioscorea Batatas — Yam Yam (y[a^]m), n. [Pg. inhame, probably from some native name.] 1. (Bot.) A large, esculent, farinaceous tuber of various climbing plants of the genus {Dioscorea}; also, the plants themselves. Mostly natives of warm climates. The plants have… …   The Collaborative International Dictionary of English

  • Dioscorea villosa — Yam Yam (y[a^]m), n. [Pg. inhame, probably from some native name.] 1. (Bot.) A large, esculent, farinaceous tuber of various climbing plants of the genus {Dioscorea}; also, the plants themselves. Mostly natives of warm climates. The plants have… …   The Collaborative International Dictionary of English

  • Dioscorĕa — (D. L.), Pflanzengattung, nach Dioskorides 1) benannt, aus der Familie der Dioscoreae, Diöcie, Hexandrie L. Von den zahlreichen Arten liefern eßbare Wurzeln: D. alata, oppositifolia, in Ostindien, erstere daselbst u. in andern Welttheilen häufig… …   Pierer's Universal-Lexikon

  • Dioscorea — Dioscorēa L., Pflanzengattg. aus der Familie der Dioskoreazeen, Schlingpflanzen, wegen ihrer stärkemehlhaltigen Knollen (Yamswurzeln, Ignamenbatate) wichtiges Nahrungsmittel, bes. D. batatas Decsn. in Nordchina und D. satīva L. in Ostindien und… …   Kleines Konversations-Lexikon

  • Dioscorea — Yams Gemeine Schmerwurz Dioscorea communis Systematik Abteilung: Bedecktsamer (Magnoliophyta) …   Deutsch Wikipedia

  • Dioscorea alata — Pour les articles homonymes, voir Ube. Dioscorea alata …   Wikipédia en Français

  • Dioscorea bulbifera — Hoffe Hoffe …   Wikipédia en Français

  • Chinese yam — Yam Yam (y[a^]m), n. [Pg. inhame, probably from some native name.] 1. (Bot.) A large, esculent, farinaceous tuber of various climbing plants of the genus {Dioscorea}; also, the plants themselves. Mostly natives of warm climates. The plants have… …   The Collaborative International Dictionary of English

  • Gastrodia sesamoides — Yam Yam (y[a^]m), n. [Pg. inhame, probably from some native name.] 1. (Bot.) A large, esculent, farinaceous tuber of various climbing plants of the genus {Dioscorea}; also, the plants themselves. Mostly natives of warm climates. The plants have… …   The Collaborative International Dictionary of English

  • Wild yam — Yam Yam (y[a^]m), n. [Pg. inhame, probably from some native name.] 1. (Bot.) A large, esculent, farinaceous tuber of various climbing plants of the genus {Dioscorea}; also, the plants themselves. Mostly natives of warm climates. The plants have… …   The Collaborative International Dictionary of English

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