资料来源 : Webster's Revised Unabridged Dictionary (1913)

Peanut \Pea"nut\, n. (Bot.)
   The fruit of a trailing leguminous plant ({Arachis
   hypog[ae]a}); also, the plant itself, which is widely
   cultivated for its fruit.

   Note: The fruit is a hard pod, usually containing two or
         three seeds, sometimes but one, which ripen beneath the
         soil. Called also {earthnut}, {groundnut}, and
         {goober}.

Pindal \Pin"dal\, Pindar \Pin"dar\, n. [D. piendel.] (Bot.)
   The peanut ({Arachis hypog[ae]a}); -- so called in the West
   Indies.

Groundnut \Ground"nut`\ (-n[u^]t`), n. (Bot.)
   (a) The fruit of the {Arachis hypog[ae]a} (native country
       uncertain); the peanut; the earthnut.
   (b) A leguminous, twining plant ({Apios tuberosa}), producing
       clusters of dark purple flowers and having a root
       tuberous and pleasant to the taste.
   (c) The dwarf ginseng ({Aralia trifolia}). [U. S.] --Gray.
   (d) A European plant of the genus {Bunium} ({B. flexuosum}),
       having an edible root of a globular shape and sweet,
       aromatic taste; -- called also {earthnut}, {earth
       chestnut}, {hawknut}, and {pignut}. [1913 Webster]

Hypogaeic \Hyp`o*g[ae]"ic\, a. [Pref. hypo- + Gr. gai^a, gh^,
   earth.] (Chem.)
   Pertaining to, or obtained from, the peanut, or earthnut
   ({Arachis hypog[ae]a}).

   {Hypog[ae]ic acid} (Chem.), an acid in the oil of the
      earthnut, in which it exists as a glyceride, and from
      which it is extracted as a white, crystalline substance.

资料来源 : WordNet®

Arachis hypogaea
     n : widely cultivated American plant cultivated in tropical and
         warm regions; showy yellow flowers on stalks that bend
         over to the soil so that seed pods ripen underground
         [syn: {peanut}, {peanut vine}]