mantissa.
A minor addition to a text.
Meaning & usage
A minor addition to a text.
The part of a common logarithm after the decimal point, the fractional part of a logarithm.
The significand; that part of a floating-point number or number in scientific notation that contains its significant digits.
Where this word comes from
Borrowed 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). Coincidentally, proparoxytone Greek μάντισσα (mántissa) means "female foreteller", as in χαρτομάντισσα (chartomántissa, “cartomancer”) or χειρομάντισσα (cheiromántissa, “chiromancer”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.