mantissa

noun
man·​tis·​sa | \ man-ˈti-sə How to pronounce mantissa (audio) \

Definition of mantissa

: the part of a logarithm to the right of the decimal point

First Known Use of mantissa

1846, in the meaning defined above

History and Etymology for mantissa

Latin mantisa, mantissa makeweight, from Etruscan

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The first known use of mantissa was in 1846

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Britannica.com: Encyclopedia article about mantissa

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