windowed

/W IH1 N D OW0 D/
verb
  1. 1

    To furnish with windows.

  2. 2

    To place at or in a window.

adjective
  1. 1

    Fitted with windows (often of a particular kind).

    โ€œa bow-windowed roomโ€

  2. 2

    Occupying only a part of the screen (in a window.)

    โ€œThis game can be played both in windowed mode and in full-screen mode.โ€

Source: https://en.wiktionary.org/wiki/window, https://en.wiktionary.org/wiki/windowed