What is the difference between "mince" and "dice"? Some recipes use the term to dice, and other recipes use the term to mince.
What is the difference between to dice, and to mince used in culinary?
Mincing produces smaller, more irregularly-shaped items than dicing.  

Dicing is generally uniform, usually 1/8 to 1/4 inch on all sides, kind of like a tiny cube. 

The best way to explain the size difference is visually, check out this link for a great picture near the top.