Source : Webster's Revised Unabridged Dictionary (1913)

Viscera \Vis"ce*ra\, n.,
   pl. of {Viscus}.

Viscus \Vis"cus\, n.; pl. {Viscera}. [L., perhaps akin to E.
   viscid.] (Anat.)
   One of the organs, as the brain, heart, or stomach, in the
   great cavities of the body of an animal; -- especially used
   in the plural, and applied to the organs contained in the
   abdomen.

Source : WordNet®

viscera
     n : internal organs collectively (especially those in the
         abdominal cavity); "`viscera' is the plural form of
         `viscus'" [syn: {entrails}, {innards}]