Pronunciation:   man'tisu



WordNet Dictionary 

 Definition:  
[n] the positive fractional part of the representation of a logarithm; in the expression log 643 = 2.808 the mantissa is .808 

MANTISSA is a 8 letter word that starts with M. 
 Synonyms:   fixedpoint part 

 See Also:   fraction 

Webster's 1913 Dictionary 

 Definition:   \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.


Computing Dictionary 

 Definition:   1. The part of a floating point number which, when multiplied by its radix raised to the power of its exponent, gives its value. The mantissa may include the number's sign or this may be considered to be a separate part. 2. The fractional part of a logarithm. 
