The Collaborative International Dictionary of English v.0.48:

Frijol \Fri"jol\, Frijole \Fri"jole\, n.; pl. Frijoles. Also
Frejol \Fre"jol\ [Sp. fr['i]jol, fr['e]jol.]
   1. In Mexico, the southwestern United States, and the West
      Indies, any cultivated bean of the genus Phaseolus, esp.
      the black seed of a variety of P. vulgaris.
      [Webster 1913 Suppl.]

   2. The beanlike seed of any of several related plants, as the
      cowpea. Frijoles are an important article of diet among
      Spanish-American peoples, being used as an ingredient of
      many dishes.
      [Webster 1913 Suppl.] frijolillo