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Definition of infra- prefix from the Oxford Advanced Learner's Dictionary

infra-

prefix
 
/ɪnfrə/
 
/ɪnfrə/
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  1. (in adjectives) below or beyond a particular limit
    • infrared
    compare ultra-
    Word Originfrom Latin infra ‘below’.
See infra- in the Oxford Advanced American Dictionary

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influence
verb
 
 
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