Plug-in (computing) - Wikipedia
https://en.m.wikipedia.org/wiki/Plug-in_%28computing%29
Web ResultIn computing, a plug-in (or plugin, add-in, addin, add-on, or addon) is a software component that adds a specific feature to an existing computer program. When a program supports plug-ins, it enables customization.
DA: 4 PA: 89 MOZ Rank: 98