An encapsulated idea or object is one that's fully contained and self-contained.
When we say something is encapsulated, we usually mean it has its own separate part or package, like a pill in a capsule. This means it can't get mixed up with other things or spread out to fill more space. In technology and science, you might hear about software being encapsulated, which means it's wrapped in its own special code so it doesn't interfere with anything else on your computer. You could also think of a plant cell as an example – the cell wall is like a membrane that keeps everything inside, where all the important stuff happens.
To enclose something as if in a capsule.
