Search Result for "isogonic line":
Wordnet 3.0

NOUN (1)

1. an imaginary line connecting points on the Earth's surface where the magnetic declination is the same;
[syn: isogonic line, isogonal line, isogone]



WordNet (r) 3.0 (2006):

isogonic line
    n 1: an imaginary line connecting points on the Earth's surface
         where the magnetic declination is the same [syn: isogonic
         line, isogonal line, isogone]