viewport /ˈvjuːpɔː(ɹ)t/noun 2verb 1forms 3 noun2 •A viewing window.acrylic plastic viewports in pressure vessels for human occupancy •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. verb1 •To clip (an image or region) so that it fits in a viewport.Some general ideas on clipping, viewporting, and windowing can be found in Rogers and Adams. — 1979 formsviewported · viewporting · viewports