Substructure

noun

Definitions

Noun
  1. 1
    The supporting part of a structure (either physical or organizational; the foundation).
  2. 2
    lowest support of a structure wordnet
  3. 3
    The earth or gravel that the railway tracks are embedded in.
  4. 4
    the basic structure or features of a system or organization wordnet
  5. 5
    Synonym of base (“the forces and relations of production that produce the necessities and amenities of life”). Marxism

Etymology

From sub- + structure.

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