Definition of pursuivants:
(n) :
(heraldry) A functionary of lower rank than a herald, but discharging similar duties; an attendant of the heralds, e.g. in the College of Arms.
(n) :
A royal messenger, (particularly) one with the authority to execute warrants.
(n) :
(Freemasonry) A Grand Lodge Officer who guards the inner door during a meeting of the Grand Lodge.
(n) :
(law enforcement, by extension) A warrant officer.
(n) :
(archaic) A follower.