■ noun
1》 a structure built on top of something else.
↘the part of a building above its foundations.
↘the parts of a ship, other than masts and rigging, built above its hull and main deck.
2》 a concept or idea based on others.
3》 (in Marxist theory) the institutions and culture considered to result from or reflect the economic system underlying a society.
Derivatives
superstructural adjective