To envelop in a protective case.
To withdraw into such a case.
The silky protective case spun by the larvae of some insects in which they metamorphose, the pupa.
Any similar protective case, whether real or metaphorical.
To place in quarantine or isolation.
To self-isolate.
To separate a pure strain of bacteria etc. from a mixed culture.
To separate a substance in pure form from a mixture.
To insulate, or make free of external influence.
To insulate an electrical component from a source of electricity.
To set apart or cut off from others.
Something that has been isolated.