Self-contained (adjective)

1. Adjective: being complete in itself and not needing anything else.
2. Adjective: having everything required for its operation or maintenance included within itself.

Origin:

Compound adjective, "self" meaning "oneself" and "contained" meaning "enclosed".

Examples:

1. The apartment was self-contained and had everything we needed for our stay.
2. The self-contained unit included a small kitchen and bathroom.
3. This is a self-contained system and does not require any external support.
4. The self-contained breathing apparatus allowed the firefighter to enter the burning building safely.
5. The self-contained ecosystem was able to sustain life without any external inputs.