Wordnet 3.0
ADJECTIVE (1)
1. 
 (of surfaces especially of cooking utensils) permitting easy removal of adherent food particles; 
- Example: "a frying pan with a nonstick surface"
The Collaborative International Dictionary of English v.0.48:
nonstick \nonstick\, non-stick \non-stick\adj.
   1. permitting easy removal of adherent food particles; -- of
      surfaces, especially of cooking utensils; as, a frying pan
      with a nonstick surface.
      [WordNet 1.5]
WordNet (r) 3.0 (2006):
nonstick
    adj 1: (of surfaces especially of cooking utensils) permitting
           easy removal of adherent food particles; "a frying pan
           with a nonstick surface"