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English definition of “magnitude”

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noun [U]  /ˈmæɡ·nəˌtud/ us  
large size or great importance: The magnitude of the task would have discouraged an ordinary man. earth science Magnitude is also a measure of the brightness of a star as it appears from earth. earth science The magnitude of an earthquake is a measure of how strong or violent it is.
(Definition of magnitude from the Cambridge Academic Content Dictionary © Cambridge University Press)
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