Definition - What does Scrolling mean?
Scrolling is the sliding movement of images, video or text across a display screen either vertically or horizontally. Scrolling can be done with or without user intervention. This feature is provided by most applications and smart devices that display contents that are too big to fit entirely on the screen. Scrolling is considered one of the basic methods of navigation.
Techopedia explains Scrolling
Many applications provide scrolling features that are tailored to the navigation needs or behavior of users. Scrolling can be animated or non-animated. In the case of video games, tile-based scrolling is widely used. Scrolling is usually done with the help of scroll bars located at the sides of an application's window. It allows users to browse through long documents or Web pages.
Scrolling is typically accomplished on desktop and laptop computers with a mouse (often with a built-in scroll wheel) or a touch pad. With mobile devices, one usually uses a finger or a stylus to scroll.