single-piece

adjective
UK /ˈsɪŋɡl piːs/
US /ˈsɪŋɡəl piːs/

Made as just one part, not many parts put together.

She wore a single-piece swimsuit to the pool.


OTHER MEANINGS

2. Made from one continuous piece of material rather than joined sections.

The chair has a single-piece plastic shell.

3. Consisting of a single item or unit rather than a set.

He bought a single-piece tool instead of a whole kit.

4. Formed as one connected structure with no separate parts.

The bridge uses a single-piece steel beam.