UNDERSTRUCTURE
Meaning of UNDERSTRUCTURE in English
ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun
Etymology: under (III) + structure
: a structure for supporting something above : foundation , basis
Webster's New International English Dictionary.
Новый международный словарь английского языка Webster.
2012