D defs.my
Entry 1 sense Webster, 1913

Superstruct

· Su·per·struct · IPA /ˌsuːpə(ɹ)ˈstɹʌkt/
01 v. t. To build over or upon another structure; to erect upon a foundation.
  1. 1.
    To build over or upon another structure; to erect upon a foundation.
    “This is the only proper basis on which to superstruct first innocency and then virtue.” Dr. H. More.