designating or of a system of arithmetic, used esp. in computer science, having its numbers expressed in scientific notation (Ex.: 0.0003 becomes 3 × 10)
See floating-point in American Heritage Dictionary 4
(flōˈtĭng-pointˌ)
adjective
Of, relating to, or being a method of writing numeric quantities with a mantissa representing the value of the digits and a characteristic indicating the power of the number base, such as 3 × 10-5.