unaccompanied minors
as defined in Council Directive 2004/83/EC of 29 April 2004 on minimum standards for the…, Article 2, point (i) (Definitions)
third-country nationals or stateless persons below the age of 18, who arrive on the territory of the Member States unaccompanied by an adult responsible for them whether by law or custom, and for as long as they are not effectively taken into the care of such a person; it includes minors who are left unaccompanied after they have entered the territory of the Member States;