Pronunciation: (in'fru-struk"chur), [key]
1. the basic, underlying framework or features of a system or organization.
2. the fundamental facilities and systems serving a country, city, or area, as transportation and communication systems, power plants, and schools.
3. the military installations of a country.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.