mantissa
1. [ noun ] (mathematics) the positive fractional part of the representation of a logarithm; in the expression log 643 = 2.808 the mantissa is .808
Synonyms: fixed-point_part
Related terms: fraction
Similar spelling:   mantis
  Mantispidae
  mantis_crab
  mantispid
  manticora
  mantic
  mantichora
  mantiger