'mantissa' definitions:
Definition of 'mantissa'
(from WordNet)
noun
The positive fractional part of the representation of a logarithm; in the expression log 643 = 2.808 the mantissa is .808 [syn: mantissa, fixed-point part]
Definition of 'mantissa'
From: GCIDE
- mantissa \man*tis*sa\, n. [L., an addition, makeweight; of Tuscan origin.] (Math.) The decimal part of a logarithm, as distinguished from the integral part, or characteristic. [1913 Webster]