floating-point number

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A number written in the form a x bc e.g. 3.75 x 103.
• noun computing 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.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a number represented in floating-point notation