• The boundary and scope within which DOM elements, styles, and scripts are isolated from the rest of a document, typically established by shadow DOM in web components. The encapsulation context defines the containment area where internal component implementation remains hidden and protected from external interference, while also preventing internal styles and scripts from leaking out to affect the broader document. It ensures that components can maintain their internal state and styling without conflicts, forming the basis for component isolation.

1. Related terms: Shadow DOM · Web component · Encapsulation · Document Object Model
2. Previous term: Encapsulation
3. Next term: Encrypted Media Extensions
4. Random term: Web Hypertext Application Technology Working Group (webglossary.info/random 🎲)