'Pursuer' definitions:

Definition of 'pursuer'

From: WordNet
noun
A person who is pursuing and trying to overtake or capture; "always before he had been able to outwit his pursuers" [syn: pursuer, chaser]
noun
A person who pursues some plan or goal; "a pursuer of truth"

Definition of 'Pursuer'

From: GCIDE
  • Pursuer \Pur*su"er\, n.
  • 1. One who pursues or chases; one who follows in haste, with a view to overtake. [1913 Webster]
  • 2. (Eccl. & Scots Law) A plaintiff; a prosecutor. [1913 Webster]