Definitions of legitimation
if you check legitimation then you check that something is allowed or permitted (eg that a person has permission to do a particular thing)
A police officer checks legitimation from a driver from Denmark at Lernacken on the Swedish side of the Oresund strait November 12, 2015.
the act of making something justified or legal
The statement claims that the Eurozone needs more political legitimation.
when a father of a child born outside of marriage becomes the child's legal father
Legitimation takes place by a subsequent valid marriage between parents.