DEAN, eccl. law. An ecelesiastictl officer, who derives his name from the fact that he presides over ten canons, or, prebondaries, at least. There are several kinds of deans, namely: 1. Deans of chapters. 2. Deans of peculiars. 3. Rural deans. 4. Deans in the colleges. 5. Honorary deans. 6. Deans of provinces.