Meaning of mantissa

man•tis•sa

Pronunciation: (man-tis'u), [key]
— n.
  1. the decimal part of a common logarithm. Cf.(def. 3a).
  2. an addition of little or no importance, as to a literary work.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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