'magnetic north' definitions:

Definition of 'magnetic north'

From: WordNet
noun
The direction in which a compass needle points [syn: north, magnetic north, compass north]

Definition of 'magnetic north'

From: GCIDE
  • magnetic north \magnetic north\ n. The direction in which the north-pointing end of a compass needle points; at low latitudes it is close to geographic (true) north, but deviates substantially from true north as one nears the north pole.
  • Syn: north, compass north. [WordNet 1.5]