What is "floating-point number"

n. 1 A number written in the form a x b^c e.g. 3.75 x 10³. 2 (context computing English) A real number held as a pair of integers, one representing the mantissa and the other representing the exponent. The base is normally 10, 16 or 256 depending on the computing system.

n. a number represented in floating-point notation