The Collaborative International Dictionary of English v.0.48:

Almond \Alm"ond\ ([aum]"m[u^]nd), n. [OE. almande, almaunde,
   alemaunde, F. amande, L. amygdala, fr. Gr. 'amygda`lh: cf.
   Sp. almendra. Cf. Amygdalate.]
   1. The fruit of the almond tree.
      [1913 Webster]

   Note: The different kinds, as bitter, sweet, thin-shelled,
         thick-shelled almonds, and Jordan almonds, are the
         products of different varieties of the one species,
         Amygdalus communis, a native of the Mediterranean
         region and western Asia.
         [1913 Webster]

   2. The tree that bears the fruit; almond tree.
      [1913 Webster]

   3. Anything shaped like an almond. Specifically: (Anat.) One
      of the tonsils.
      [1913 Webster]

   Almond oil, fixed oil expressed from sweet or bitter
      almonds.

   Oil of bitter almonds, a poisonous volatile oil obtained
      from bitter almonds by maceration and distillation;
      benzoic aldehyde.

   Imitation oil of bitter almonds, nitrobenzene.

   Almond tree (Bot.), the tree bearing the almond.

   Almond willow (Bot.), a willow which has leaves that are of
      a light green on both sides; almond-leaved willow (Salix
      amygdalina). --Shenstone.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Amygdalus communis
    n 1: small bushy deciduous tree native to Asia and North Africa
         having pretty pink blossoms and highly prized edible nuts
         enclosed in a hard green hull; cultivated in southern
         Australia and California [syn: almond, sweet almond,
         Prunus dulcis, Prunus amygdalus, Amygdalus communis]