mantissa
Americannoun
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Mathematics. the decimal part of a common logarithm.
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Obsolete. an addition of little or no importance, as to a literary work.
noun
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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.
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Compare characteristic
Etymology
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)
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Why, for openers, does he call this novel Mantissa and then provide a self-deprecatory definition of the word, "An addition of comparatively small importance, especially to a literary effort or discourse"?
From Time Magazine Archive
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Mantissa is a jeu d 'esprit with a vengeance, its principal characters, like so many of Fowles' earlier creations, held in thrall by forces they cannot quite explain.
From Time Magazine Archive
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Mantissa is clearly an example of serious modern fiction, with itself as its subject, and not a trace of difficulty is visible anywhere in its construction.
From Time Magazine Archive
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Linnæus has described this plant minutely in his Mantissa Plant, so that no doubt remains of its being his maritimus.
From The Botanical Magazine, Vol. 5 Or, Flower-Garden Displayed by Curtis, William
Since which time, He was pleased to give this further Information of the same matter, with a Mantissa of some other Particulars, belonging to this Subject, in these Words.
From Philosophical Transactions of the Royal Society - Vol 1 - 1666 Giving some Accompt of the present Undertakings, Studies, and Labours of the Ingenious in many considerable parts of the World by Oldenburg, Henry
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.