Category:Superstructure

Su`per*struc"ture, n. Etym: [cf. F. superstructure.]

1. Any material structure or edifice built on something else; that Which is raised on a foundation or basis; esp. (arch.),

Defn: all that part of a building above the basement. Also used Figuratively. You have added to your natural endowments the superstructure of Study. Dryden.

2. (railway engin.)

Defn: the sleepers, and fastenings, in distinction from the roadbed.