EXAMPLES | WORD ORIGIN noun . Obsolete an addition of little or no importance, as to a literary work. Origin of mantissa 1860–65; < Latin, variant of mantisa addition, makeweight, said to be from Etruscan; logarithmic mantissa so called because it is additional to the characteristic or integral part (term introduced by H. Briggs)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for mantissa Historical Examples of mantissa
Linnæus, however, says that his plant came from India (
Mantissa, p. 273).
The integral part of a logarithm is called the index or characteristic, and the fractional part the
mantissa. Mantissa Plantarum, generum editionis sextæ et specierum editionis secundæ.
Linnæus has described this plant minutely in his
Mantissa Plant, so that no doubt remains of its being his maritimus.
Linnæus originally confounded it with a similar plant, the Draba alpina, a mistake since rectified in his
Mantissa Plant. British Dictionary definitions for mantissa noun the fractional part of a common logarithm representing the digits of the associated number but not its magnitude the mantissa of 2.4771 is .4771 Compare characteristic (def. 2a) Word Origin for mantissa
C17: from Latin: something added, of Etruscan origin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for mantissa n.
decimal part of a logarithm, 1865, from Latin
mantisa "a worthless addition, makeweight," perhaps a Gaulish word introduced into Latin via Etruscan (cf. Old Irish meit, Welsh maint "size").
Online Etymology Dictionary, © 2010 Douglas Harper
The part of a logarithm to the base ten that is to the right of the decimal point. For example, if 2.749 is a logarithm, .749 is the mantissa. Compare characteristic.
The American Heritage® Science Dictionary
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