Harrier n. : One of a small breed of hounds, used for hunting hares.

Harrier n. : One who harries.

Harrier n. : 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 aerunginosus), and the hen harrier (C. cyaneus).

Example:


Taxonomy
Harrier, Mk, aircraft, Harrier Jump Jet, AV-8B Harrier II, STOL, Spain, Hawker Siddeley Harrier, Sea Harrier, Harrier II, AV-8A Harrier, Harrier GR, Variants, British, Pegasus, lbf, kN, Hawker P.1127.

Defination from the web:
Harrier Jump Jet, often referred to as just "Harrier" or "the Jump Jet", is a British designed military jet aircraft capable of Vertical ... The Harrier family is the only truly successful design of this type from the many that arose in the 1960s. ...