Wordnet 3.0
ADJECTIVE (2)
1. 
 characterized by or having authority vested equally among colleagues; 
- Example: "collegial harmony"- Example: "a tendency to turn from collegial to one-man management"- Merle Fainsod2. 
 of or resembling or typical of a college or college students; 
- Example: "collegiate living"- Example: "collegiate attitudes"- Example: "collegiate clothes"[syn: collegiate, collegial]
The Collaborative International Dictionary of English v.0.48:
Collegial \Col*le"gi*al\, n. [LL. collegialis.]
   Collegiate. [R.]
   [1913 Webster]
WordNet (r) 3.0 (2006):
collegial
    adj 1: characterized by or having authority vested equally among
           colleagues; "collegial harmony"; "a tendency to turn from
           collegial to one-man management"- Merle Fainsod
    2: of or resembling or typical of a college or college students;
       "collegiate living"; "collegiate attitudes"; "collegiate
       clothes" [syn: collegiate, collegial]