\Sweet"bread`\, n.
1. Either the thymus gland or the pancreas, the former being
   called {neck, or throat, sweetbread}, the latter {belly
   sweetbread}. The sweetbreads of ruminants, esp. of the
   calf, are highly esteemed as food. See {Pancreas}, and
   {Thymus}.

2. (Anat.) The pancreas.