Precision Area Navigation (P-RNAV)
A method of navigation which permits aircraft operations on any desired flight path within the coverage of ground- or spaced-based navigation aids or within the limits of the capability of self-contained aids, or a combination of these.
ICAO, Official term and definition added to AN 2 by Amdt 41 (20/07/2008), AN 3 by Amdt 75 (2010), AN 4 by Amdt 55 (2009), AN 6/I by Amdt 32 (20/07/2008), AN 6/III by Amdt 13 (20/07/2008), AN 10/I by Amdt 83 (20/07/2008), AN 15 by Amdt 35 (2009) and modified by Amdt 46 to AN 11 (20/07/2008)
Area navigation includes performance-based navigation as well as other operations that do not meet the definition of performance-based navigation. (Note source: ICAO)