fisheye Syllabification: (fish·eye)Pronunciation: /ˈfiSHˌī/Definition of fisheye noun 1 (also fisheye lens) a wide-angle lens with a field of vision covering up to 180°, the scale being reduced toward the edges. 2 informal a suspicious or unfriendly look:Wally gave him the fisheyefisheye in other Oxford dictionaries Definition of fisheye in the British & World English dictionary