Noun
Descent of related families; distinction between the members of a family according to their ages.
Source: Webster's dictionaryIn Canadian heraldry, the chess rook is the cadency mark of a fifth daughter. Source: Internet
Marks of cadency are almost unknown, and shields are generally very simple, with only one charge. Source: Internet
These cadency marks are usually shown smaller than normal charges, but it still does not follow that a shield containing such a charge belongs to a cadet branch. Source: Internet