in-betweenlayer
nounUK /ˌɪnbɪˈtwiːnleɪə/
US /ˌɪnbɪˈtwiːnleɪər/
A layer that sits in the middle of two other layers.
The in-betweenlayer of the cake was soft and sweet.
OTHER MEANINGS
2. A person who carries messages between two groups.
She acted as an in-betweenlayer during the talks.
3. A thin material placed between two surfaces to keep them apart.
The in-betweenlayer stops the metal parts from rubbing.
4. A stage that connects two steps in a process.
This in-betweenlayer helps the old system talk to the new one.