'Harrier' definitions:

Definition of 'harrier'

noun

A persistent attacker; "the harassers were not members of the regular army" [syn: harasser, harrier]

noun

A hound that resembles a foxhound but is smaller; used to hunt rabbits

noun

Hawks that hunt over meadows and marshes and prey on small terrestrial animals

From: GCIDE

Harrier \Har"ri*er\ (-[~e]r), n. [From Hare, n.] (Zool.) One of a small breed of hounds, used for hunting hares. [Written also harier.] [1913 Webster]

From: GCIDE

Harrier \Har"ri*er\, n. [From Harry.]
1. One who harries. [1913 Webster]
2. (Zool.) One of several species of hawks or buzzards of the genus Circus which fly low and harry small animals or birds, -- as the European marsh harrier ({Circus [ae]ruginosus}), and the hen harrier (Circus cyaneus). [1913 Webster]
Harrier hawk (Zool.), one of several species of American hawks of the genus Micrastur. [1913 Webster]