I. wide·screen 1 /ˈwaɪdskriːn/ BrE AmE adjective
1 . a widescreen television is much wider than it is high
2 . made in a form that is intended to be seen on a screen much wider than it is high:
Widescreen movies are often shown on TV with the sides cut short.
II. widescreen 2 BrE AmE noun
in widescreen in a form that is intended to be seen on a wide screen:
The series was shot in widescreen.