[suhb-struhk-cher, suhb-struhk-]


a structure forming the foundation of a building or other construction.
the foundations, piers, and abutments upon which the trusses or girders of the spans of a bridge rest.
any basic structure or organization.

Origin of substructure

First recorded in 1720–30; sub- + structure
Related formssub·struc·tur·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for substructure

Historical Examples of substructure

British Dictionary definitions for substructure



a structure, pattern, etc, that forms the basis of anything
a structure forming a foundation or framework for a building or other construction
Derived Formssubstructural, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for substructure

1726, from sub- + structure (n.).

Online Etymology Dictionary, © 2010 Douglas Harper

substructure in Medicine




A tissue or structure wholly or partly beneath the surface.
Related formssub•structur•al adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.