The AI-powered English dictionary
plural viewports
A viewing window. examples
(computer graphics) A typically rectangular region representing the range or area currently visible (within a window, screen, etc.). examples
third-person singular simple present viewports, present participle viewporting, simple past and past participle viewported
(transitive, computer graphics) To clip (an image or region) so that it fits in a viewport. quotations examples
Some general ideas on clipping, viewporting, and windowing can be found in Rogers and Adams.
1979, Tutorial: Computer Graphics, page 80
Viewporting is an operation that takes the portion of the picture that has been mapped into the square region delimited by -1,+1,-1,+1 and further maps it into a rectangular subregion of the screen (a viewport).
1980, MTS, the Michigan Terminal System, volume 17, page 42
The main thing I want you to take away from this chapter is knowing where to start and creating a very simple viewported web site using nothing more than an extra <meta> tag and simple HTML.
2012, Scott Preston, Learn HTML5 and JavaScript for iOS