substruction
n. கீழ்க் கட்டுமானம்.
Sub*struc"tion, n. Etym: [L. substructio, fr. substruere, substructum, to build beneath; sub under + struere to build.] (Arch.) Defn: Underbuilding; the foundation, or any preliminary structure intended to raise the lower floor or basement of a building above the natural level of the ground. It is a magnificent strong building, with a substruction very remarkable. Evelyn.