Found 2 items, similar to mantissa.
English → English (WordNet) Definition: mantissa mantissa n : the positive fractional part of the representation of a logarithm; in the expression log 643 = 2.808 the mantissa is .808 [syn: fixed-point part]
English → English (gcide) Definition: mantissa 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]