Definition of "substruction" []

• A foundation; a substructure. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Persepolis, raised, for the substruction of their palaces, an immense platform of massive masonry, which is one of the most wonderful monuments of the world's ancient builders."
• "The plan of the substruction of this new library, as shewn on the ground-plan of Clairvaux given by Viollet Le Duc [240], is exactly the same as that of Citeaux (fig. 33) but on a larger scale."
• "The fire rests upon the broad hearth; the hearth rests upon a great substruction of stone, and the substruction rests upon the cellar."