Source : Webster's Revised Unabridged Dictionary (1913)

Excreta \Ex*cre"ta\, n. pl. [L.]
   Matters to be excreted.

Source : WordNet®

excreta
     n : waste matter (as urine or sweat but especially feces)
         discharged from the body [syn: {body waste}, {excretion},
          {excrement}, {excretory product}]