Agonic
Pronunciation : A*gon"ic
Part of Speech : a.
Etymology : [Gr.
Definition : Defn: Not forming an angle. Agonic line (Physics), an imaginary line on the earth's surface passing through those places where the magnetic needle points to the true north; the line of no magnetic variation. There is one such line in the Western hemisphere, and another in the Eastern hemisphere.
Source : Webster's Unabridged Dictionary, 1913