Mantissa Definition

măn-tĭsə
noun
The decimal part of a logarithm to base 10 as distinguished from the integral part (called the characteristic)
.7193 is the mantissa of the logarithm 4.7193
Webster's New World
Synonyms:
  • fixed-point part

Other Word Forms of Mantissa

Noun

Singular:
mantissa
Plural:
mantissae

Origin of Mantissa

  • From Latin mantissa, mantīsa, of unknown origin (said by Festus to be a loanword from Etruscan, but it may actually be from Celtic, possibly through Etruscan mediation).

    From Wiktionary

  • Latin makeweight perhaps of Etruscan origin

    From American Heritage Dictionary of the English Language, 5th Edition

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