insidestructure

noun
UK /ˌɪnsaɪdˈstrʌktʃə/
US /ˌɪnsaɪdˈstrʌktʃər/

The inside structure is the way the parts of something are put together on the inside.

The inside structure of the birdhouse keeps it strong.


OTHER MEANINGS

2. The hidden parts that hold a building or object together.

Engineers studied the inside structure of the bridge.

3. The way something is organized on the inside.

The inside structure of the club has a president and helpers.

4. The inner pattern of a material or object.

The inside structure of the sponge is full of tiny holes.