structuralmodification

noun
UK /ˈstrʌk.tʃər.əl ˌmɒd.ɪ.fɪˈkeɪ.ʃən/
US /ˈstrʌk.tʃɚ.əl ˌmɑː.də.fəˈkeɪ.ʃən/

A change made to the way something is built or put together.

The engineers made a structural modification to the bridge so it could hold heavier trucks.


OTHER MEANINGS

2. A change in the basic parts or rules of a system or organization.

The company announced a structural modification to its management team.

3. A change to the chemical framework of a molecule.

Scientists studied a structural modification of the protein to see how it behaved.

4. A change in the grammar or arrangement of a sentence.

The editor suggested a structural modification to make the paragraph clearer.