The age at which an employee holding a particular position normally retires in an organisation. The normal retirement age is ascertained from the reasonable expectation of the group of employees holding the same position as the individual. If there is no reasonable expectation of retiring at a particular age then the default normal retirement age is 65.
Related links
Practical Law Dictionary. Glossary of UK, US and international legal terms. www.practicallaw.com. 2010.