Definition of laymen:
(n) :
(by extension) Someone who is not a professional in a given field.
(n) :
A person who is untrained or lacks knowledge of a subject.
(n) :
A common person.
(n) :
Layperson, someone who is not an ordained cleric or member of the clergy.
(n) :
Lay-sister or lay-brother, person received into a convent of monks, following the vows, but not being member of the order.
(n) :
A surname.