Source : Webster's Revised Unabridged Dictionary (1913)

Soja \So"ja\ (s[=o]"j[.a] or s[=o]"y[.a]), n. (Bot.)
   An Asiatic leguminous herb ({Glycine Soja}) the seeds of
   which are used in preparing the sauce called soy.

Source : WordNet®

soja
     n : erect bushy hairy annual herb having trifoliate leaves and
         purple to pink flowers; extensively cultivated for food
         and forage and soil improvement but especially for its
         nutritious oil-rich seeds; native to Asia [syn: {soy}, {soya},
          {soybean}, {soya bean}, {soybean plant}, {soja bean}, {Glycine
         max}]