logarithm
noun/ˈlɒɡərɪðəm/
/ˈlɔːɡərɪðəm/
(also informal log)
(mathematics)- any of a series of numbers set out in lists that make it possible to work out problems by adding and subtracting instead of multiplying and dividingTopics Maths and measurementc2Word Originearly 17th cent.: from modern Latin logarithmus, from Greek logos ‘reckoning, ratio’ + arithmos ‘number’.
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