process of finding an estimate, or approximation, which is a value that is usable for some purpose even if input data may be incomplete, uncertain, or unstable
The English used in this article may not be easy for everybody to understand. (April 2012)
|The Simple English Wiktionary has a definition for: estimate.|
Estimation is the approximation of a result that one can use even if they are using information that is not clear or is incomplete. It is like making an educated, reasonable guess based on the information given.