Definitions for "Significand"
See fraction.
The part of a binary floating-point number that indicates where the number falls between two successive powers of 2. The wider the significand field in a numeric format, the more precision the format has.
The significand (also coefficient or mantissa) is the part of a floating-point number that contains its significant digits. Depending on the interpretation of the exponent, the significand may be considered to be an integer or a fraction.
a sequence of digits containing a decimal point