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Definition of mainframe noun from the Oxford Advanced Learner's Dictionary

mainframe

noun
 
/ˈmeɪnfreɪm/
 
/ˈmeɪnfreɪm/
(also mainframe computer)
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  1. a large, powerful computer, usually the centre of a network and shared by many users compare microcomputer, personal computerTopics Computersc2
See mainframe in the Oxford Advanced American Dictionary
alloy
noun
 
 
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Physics and chemistry
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