Definition of "viewport" in English

noun

1. A viewing window.

   • acrylic plastic viewports in pressure vessels for human occupancy

2. (computer graphics) A typically rectangular region representing the range or area currently visible (within a window, screen, etc.).

   • Dragging the scroll-bar changes which part of the picture is visible within the viewport.

verb

1. (transitive, computer graphics) To clip (an image or region) so that it fits in a viewport.