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From Longman Dictionary of Contemporary English
Related topics: Government, Sociology
infrastructurein‧fra‧struc‧ture /ˈɪnfrəˌstrʌktʃə $ -ər/ ●○○ AWL noun [countable, uncountable]  PGSSthe basic systems and structures that a country or organization needs in order to work properly, for example roads, railways, banks etc Some countries lack a suitable economic infrastructure. a $65 billion investment package in education, health care and infrastructureinfrastructural adjective
Examples from the Corpus
infrastructureThese developments often failed because of the limited scale of the local social and economic infrastructure.If anything the situation is worse, with sharp cutbacks in government investments in education, infrastructure, and research.More can be done to cut excess infrastructure and support.Where existing infrastructure is inadequate or nonexistent, new alternatives tend to take off faster.Were this not all, the new sources of energy lie in regions devoid of infrastructure and population.Urban life depends upon an invisible stratum of people who repair the city's infrastructure while all the rest are abed.So, some aspects of the technical infrastructure for electronic commerce are already in place.
From Longman Business Dictionaryinfrastructurein‧fra‧struc‧ture /ˈɪnfrəˌstrʌktʃə-ər/ noun [countable, uncountable]1ECONOMICS the basic systems and structures that a country needs to make economic activity possible, for example transport, communications, and power suppliesWork is urgently needed to repair our decaying infrastructure.The government invested $65 billion in infrastructure.2COMMERCEthe basic systems and equipment needed for an industry or business to operate successfullyNo retail infrastructure exists to channel these new products to the customers.3COMPUTING the computers, communications networks, and software needed for computer systems to operate or to communicate with other systemsOn-line services are a major part of the Internet infrastructure.
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